#include
#include
#include
#include
#define MAX 10000
char * multiply(char [],char[]);
int main(){
char a[MAX];
char b[MAX];
char *c;
int la,lb;
int i;
printf("Enter the first number : ");
scanf("%s",a);
printf("Enter the second number : ");
scanf("%s",b);
printf("Multiplication of two numbers : ");
c = multiply(a,b);
printf("%s",c);
return 0;
}
char * multiply(char a[],char b[]){
static char mul[MAX];
char c[MAX];
char temp[MAX];
int la,lb;
int i,j,k=0,x=0,y;
long int r=0;
long sum = 0;
la=strlen(a)-1;
lb=strlen(b)-1;
for(i=0;i<=la;i++){
a[i] = a[i] - 48;
}
for(i=0;i<=lb;i++){
b[i] = b[i] - 48;
}
for(i=lb;i>=0;i--){
r=0;
for(j=la;j>=0;j--){
temp[k++] = (b[i]*a[j] + r)%10;
r = (b[i]*a[j]+r)/10;
}
temp[k++] = r;
x++;
for(y = 0;y<x;y++){
temp[k++] = 0;
}
}
k=0;
r=0;
for(i=0;i<la+lb+2;i++){
sum =0;
y=0;
for(j=1;j<=lb+1;j++){
if(i <= la+j){
sum = sum + temp[y+i];
}
y += j + la + 1;
}
c[k++] = (sum+r) %10;
r = (sum+r)/10;
}
c[k] = r;
j=0;
for(i=k-1;i>=0;i--){
mul[j++]=c[i] + 48;
}
mul[j]='\0';
return m
multiplications Table of large numbers in C
multiplications Table of large numbers in C | large numbers Calculations in C | large numbers Programs in C | Long Integers In C
C program to find power of a large number
C program to find power of a large number | Power of Large Numbers in C | Find Power Of Numbers in C Language
#include
#include
#define MAX 10000
char * multiply(char [],char[]);
int main(){
char a[MAX];
char *c;
int i,n;
printf("Enter the base number: ");
scanf("%s",a);
printf("Enter the power: ");
scanf("%d",&n);
printf("Power of the %s^%d: ",a,n);
c = multiply(a,"1");
for(i=0;i<n-1;i++)
c = multiply(a,c);
while(*c)
if(*c =='0')
c++;
else
break;
printf("%s",c);
return 0;
}
char * multiply(char num1[],char num2[]){
static char mul[MAX];
char a[MAX];
char b[MAX];
char c[MAX];
char temp[MAX];
int la,lb;
int i=0,j,k=0,x=0,y;
long int r=0;
long sum = 0;
while(num1[i]){
a[i] = num1[i];
i++;
}
a[i]= '\0';
i=0;
while(num2[i]){
b[i] = num2[i];
i++;
}
b[i]= '\0';
la=strlen(a)-1;
lb=strlen(b)-1;
for(i=0;i<=la;i++){
a[i] = a[i] - 48;
}
for(i=0;i<=lb;i++){
b[i] = b[i] - 48;
}
for(i=lb;i>=0;i--){
r=0;
for(j=la;j>=0;j--){
temp[k++] = (b[i]*a[j] + r)%10;
r = (b[i]*a[j]+r)/10;
}
temp[k++] = r;
x++;
for(y = 0;y<x;y++){
temp[k++] = 0;
}
}
k=0;
r=0;
for(i=0;i<la+lb+2;i++){
sum =0;
y=0;
for(j=1;j<=lb+1;j++){
if(i <= la+j){
sum = sum + temp[y+i];
}
y += j + la + 1;
}
c[k++] = (sum+r) %10;
r = (sum+r)/10;
}
c[k] = r;
j=0;
for(i=k-1;i>=0;i--){
mul[j++]=c[i] + 48;
}
mul[j]='\0';
return mul;
}
C Program to remove duplicate elements from given array
C Program to remove duplicate elements from given array | deleting Duplicate Elements from array
#include
int main(){
int arr[50];
int *p;
int i,j,k,size,n;
printf("\nEnter size of the array: ");
scanf("%d",&n);
printf("\nEnter %d elements into the array: ",n);
for(i=0;i<n;i++)
scanf("%d",&arr[i]);
size=n;
p=arr;
for(i=0;i<size;i++){
for(j=0;j<size;j++){
if(i==j){
continue;
}
else if(*(p+i)==*(p+j)){
k=j;
size--;
while(k < size){
*(p+k)=*(p+k+1);
k++;
}
j=0;
}
}
}
printf("\nThe array after removing duplicates is: ");
for(i=0;i < size;i++){
printf(" %d",arr[i]);
}
return 0;
}
Find 2nd Largest Number From Array in C || C program to find the second largest element in an array
Find 2nd Largest Number From Array in C || C program to find the second largest element in an array
#include
int main(){
int a[50],size,i,j=0,big,secondbig;
printf("Enter the size of the array: ");
scanf("%d",&size);
printf("Enter %d elements in to the array: ", size);
for(i=0;i<size;i++)
scanf("%d",&a[i]);
big=a[0];
for(i=1;i<size;i++){
if(big<a[i]){
big=a[i];
j = i;
}
}
secondbig=a[size-j-1];
for(i=1;i<size;i++){
if(secondbig <a[i] && j != i)
secondbig =a[i];
}
printf("Second biggest: %d", secondbig);
return 0;
}
Program to Add or subtract two complex numbers
Program to Add or subtract two complex numbers
#include
int main(){
int a,b,c,d,x,y;
printf("\nEnter the first complex number:");
scanf("%d%d",&a,&b);
printf("\nEnter the second complex number:");
scanf("%d%d",&c,&d);
if(b<0)
printf("%d-i\n",a-b);
else
printf("d+i\n",a+b);
if(d<0)
printf("d-i\n",c-d);
else
printf("%d+i\n",c+d);
printf("\nADDITION ");
x=a+c;
y=b+d;
if(y>0)
printf("%d-i%d",x,-y);
else
printf("%d+i%d",x,+y);
printf("\n\nSUBTRACTION ");
x=a-c;
y=b-d;
if(y<0)
printf("%d-i%d",x,-y);
else
printf("%d+i%d",x,+y);
return 0;
}
C program for cleardevice | cleardevice attached in C
C program for cleardevice | cleardevice attached in C
#include
#include
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:\\TC\\BGI");
outtext("Press any key to clear the screen.");
getch();
cleardevice();
outtext("Press any key to exit...");
getch();
closegraph();
return 0;
}
draw a circle in C | Cirlce Graphic in C
draw a circle in C
#include
#include
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:\\TC\\BGI");
circle(100, 100, 50);
getch();
closegraph();
return 0;
}
arc graphics function in c | Drawing Arc in C
arc graphics function in c, Drawing Arc in C
#include
#include
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:\\TC\\BGI");
arc(100, 100, 0, 135, 50);
getch();
closegraph();
return 0;
}
C Program to change system date | SetDate Function in C | Change System Clock Time From C
C Program to change system date | SetDate Function in C | Change System Clock Time From C
#include
#include
#include
main()
{
/*Program to change System Date*/
struct date d;
printf("Enter the new date ( day, month and year ) as integers ");
scanf("%d%d%d",&d.da_day,&d.da_mon,&d.da_year);
setdate(&d);
printf("Now Current system date is %d/%d/%d\n",d.da_day,d.da_mon,d.da_year);
getch();
return 0;
}
gettime() Function in C
gettime() Function in C
Returns System Time.
Returns System Time.
#include
#include
main()
{
struct time t;
gettime(&t);
printf("Current system time is %d : %d : %d\n",t.ti_hour,t.ti_min,t.ti_sec);
return 0;
}
Getdate Function in C
Getdate Function in C
#include
#include
main()
{
struct date d;
getdate(&d);
printf("Current system date is %d/%d/%d\n",d.da_day,d.da_mon,d.da_year);
return 0;
}
delay function in c
To use delay function in your program you should include the dos.h header file.
#include
#include
main()
{
printf("This c program will exit in 10 seconds.\n");
delay(10000);
return 0;
}
using chdir in c, chdir function in c,
chdir Example program in C, chdir Demo in C, program using chdir function in C
#include
#include
#include
#include
const char * const path = "d:/popsys/test";
const char * const file = "lernc.txt";
int main () {
printf ("Changing directory to <%s>\n", path);
if (chdir (path) == -1) {
printf ("chdir failed - %s\n", strerror (errno));
}else {
printf ("chdir done !!!\n");
printf ("directory content of '%s'\n\n", path);
system ("ls -l");
printf ("\n");
printf ("checking the content of '%s'\n", file);
system ("cat lernc.txt");
}
return 0;
}
fopen example in c, use of fopen function in C, C File handling
fopen example in c, use of fopen function in C, C File handling
#include
void main()
{
FILE *fopen(), *fp;
int c ;
fp = fopen( "lernc.com", "r" ); /*open file for reading */
c = getc( fp ) ;
while ( c != EOF )
{
putchar( c );
c = getc ( fp );
}
fclose( fp );
}
c Program to count characters in given file, Count characters
c Program to count characters in given file, Count characters in from file, number of characters in given file
#include
void main()
{
FILE *fopen(), *fp;
int c , nc, nlines;
char filename[40] ;
nlines = 0 ;
nc = 0;
printf("Enter file name: ");
gets( filename );
fp = fopen( filename, "r" );
if ( fp == NULL )
{
printf("Cannot open %s for reading \n", filename );
exit(1); /* terminate program */
}
c = getc( fp ) ;
while ( c != EOF )
{
if ( c == '\n' )
nlines++ ;
nc++ ;
c = getc ( fp );
}
fclose( fp );
if ( nc != 0 )
{
printf("There are %d characters in %s \n", nc, filename );
printf("There are %d lines \n", nlines );
}
else
{
printf("File: %s is empty \n", filename );
}
}
c program to count number of lines in a file
c program to count number of lines in a file, Number of lines in given text file
#include
void main()
{
FILE *fopen(), *fp;
int c , nc, nlines;
char filename[40] ;
nlines = 0 ;
nc = 0;
printf("Enter the file name: ");
gets( filename );
fp = fopen( filename, "r" );
if ( fp == NULL )
{
printf("Sorry Cannot open %s for reading \n", filename );
exit(1); /* End program */
}
c = getc( fp ) ;
while ( c != EOF )
{
if ( c == '\n' )
nlines++ ;
nc++ ;
c = getc ( fp );
}
fclose( fp );
if ( nc != 0 )
{
printf("There are %d characters in %s \n", nc, filename );
printf("There are %d lines \n", nlines );
}
else
{
printf("Ohh.h....File: %s is empty \n", filename );
}
}
c program to compare two files without using predefined Function
c program to compare two files without using predefined Function
#include
void main()
{
FILE *fp1, *fp2, *fopen();
int ca, cb;
char fname1[40], fname2[40] ;
printf("Enter name of first file :") ;
gets(fname1);
printf("Enter name of second file:");
gets(fname2);
fp1 = fopen( fname1, "r" ); /* open file1 for reading */
fp2 = fopen( fname2, "r" ) ; /* open file 2 for reading */
if ( fp1 == NULL ) /* check does file exist etc */
{
printf("Cannot open %s for reading \n", fname1 );
exit(1); /* terminate program */
}
else if ( fp2 == NULL )
{
printf("Cannot open %s for reading \n", fname2 );
exit(1); /* terminate program */
}
else /* both files opened successfully */
{
ca = getc( fp1 ) ;
cb = getc( fp2 ) ;
while ( ca != EOF && cb != EOF && ca == cb )
{
ca = getc( fp1 ) ;
cb = getc( fp2 ) ;
}
if ( ca == cb )
printf("Files are identical \n");
else if ( ca != cb )
printf("Files differ \n" );
fclose ( fp1 );
fclose ( fp2 );
}
}
Program to Move car in C
Program to Move car in C,C program to move a car, car running program in C, car game in C
#include
#include
#include
main()
{
int i, j = 0, gd = DETECT, gm;
initgraph(&gd,&gm,"C:\\TC\\BGI");
settextstyle(DEFAULT_FONT,HORIZ_DIR,2);
outtextxy(25,240,"Press any key to view the moving car");
getch();
setviewport(0,0,639,440,1);
for( i = 0 ; i <= 420 ; i = i + 10, j++ )
{
rectangle(50+i,275,150+i,400);
rectangle(150+i,350,200+i,400);
circle(75+i,410,10);
circle(175+i,410,10);
setcolor(j);
delay(100);
if( i == 420 )
break;
clearviewport();
}
getch();
closegraph();
return 0;
}
Creating captcha in C, captcha program in c
Creating captcha in C, captcha program in c, Captcha in C, C Language to show captcha
#include
#include
#include
main()
{
int i = 0, key, num, midx, gd = DETECT, gm;
char a[10];
initgraph(&gd,&gm,"C:\\TC\\BGI");
midx = getmaxx()/2;
settextstyle(SCRIPT_FONT,HORIZ_DIR,5);
settextjustify(CENTER_TEXT,CENTER_TEXT);
setcolor(GREEN);
outtextxy(midx,20,"CAPTCHA");
settextstyle(SCRIPT_FONT,HORIZ_DIR,2);
outtextxy(midx,125,"Press any key to change the generated random code \"captcha\"");
outtextxy(midx,150,"Press escape key to exit...");
setcolor(WHITE);
setviewport(100,200,600,400,1);
setcolor(RED);
randomize();
while(1)
{
while(i<6)
{
num = random(3);
if ( num == 0 )
a[i] = 65 + random(26); /* 65 is the ASCII value of A */
else if ( num == 1)
a[i] = 97 + random(26); /* 97 is the ASCII value of a */
else
a[i] = 48 + random(10); /* 48 is the ASCII value of 0 */
i++;
}
a[i] = '\0';
outtextxy(210,100,a);
key = getch();
if( key == 27 ) /* escape key*/
exit(0);
clearviewport();
i = 0;
}
}
traffic light program in c, traffic light simulation in C
traffic light program in c, traffic light simulation in C
#include
#include
#include
#include
main()
{
int gd = DETECT, gm, midx, midy;
initgraph(&gd, &gm, "C:\\TC\\BGI");
midx = getmaxx()/2;
midy = getmaxy()/2;
setcolor(RED);
settextstyle(SCRIPT_FONT, HORIZ_DIR, 3);
settextjustify(CENTER_TEXT, CENTER_TEXT);
outtextxy(midx, midy-10, "Traffic Light Simulation");
outtextxy(midx, midy+10, "Press any key to start");
getch();
cleardevice();
setcolor(WHITE);
settextstyle(DEFAULT_FONT, HORIZ_DIR, 1);
rectangle(midx-30,midy-80,midx+30,midy+80);
circle(midx, midy-50, 22);
setfillstyle(SOLID_FILL,RED);
floodfill(midx, midy-50,WHITE);
setcolor(BLUE);
outtextxy(midx,midy-50,"STOP");
delay(2000);
graphdefaults();
cleardevice();
setcolor(WHITE);
rectangle(midx-30,midy-80,midx+30,midy+80);
circle(midx, midy, 20);
setfillstyle(SOLID_FILL,YELLOW);
floodfill(midx, midy,WHITE);
setcolor(BLUE);
outtextxy(midx-18,midy-3,"READY");
delay(2000);
cleardevice();
setcolor(WHITE);
rectangle(midx-30,midy-80,midx+30,midy+80);
circle(midx, midy+50, 22);
setfillstyle(SOLID_FILL,GREEN);
floodfill(midx, midy+50,WHITE);
setcolor(BLUE);
outtextxy(midx-7,midy+48,"GO");
setcolor(RED);
settextstyle(SCRIPT_FONT, HORIZ_DIR, 4);
outtextxy(midx-150, midy+100, "Press any key to exit...");
getch();
closegraph();
return 0;
}
Best fortran compiler for Windows 7
I think Best FORTRAN compiler for Windows 7 are follows :
http://www.gnu.org/software/gcc/
http://gcc.gnu.org/install/binaries.html
http://www.gnu.org/software/gcc/
http://gcc.gnu.org/install/binaries.html
Program to Calculating interest C
Program to Calculating interest C
double recursive(double base, int runs) {
static double m_rate = 1 + (10/100); /* Ten percent interest*/
double new_base = (base*m_rate);
if (runs != 0)
return recursive(new_base,runs-1);
else
return new_base;
}
int main() {
printf("%.2f",recursive(100,10));
return 0;
}
C Program 2D arrays with structs and pointers
C Program 2D arrays with structs and pointers
#include
#include
#define NUM_ROWS 20
#define NUM_COLS 20
#define WALL 0
#define FLOOR 1
#define PASS 1
#define NOT_PASS 0
typedef struct playerChar {
int HP;
} PlayerChar;
//General struct with pointers to every type of 'creature' that can be shown on map
typedef struct charPointers {
PlayerChar * pPointer;
} CharPointers;
int main (void) {
initscr();
noecho();
curs_set(0);
resize_term (NUM_ROWS, NUM_COLS);
int i, j;
int ** mapArray = (int **) malloc (NUM_ROWS * sizeof (int *));
int ** passableArray = (int **) malloc (NUM_ROWS * sizeof (int *));
int ** charLoc = (int **) malloc (NUM_ROWS * sizeof (int *));
for (i = 0; i < NUM_ROWS; i++) {
mapArray [i] = (int *) malloc (NUM_COLS * sizeof (int));
passableArray [i] = (int *) malloc (NUM_COLS * sizeof (int));
charLoc [i] = (int *) malloc (NUM_COLS * sizeof (CharPointers));
for (j = 0; j < NUM_COLS; j++) {
if (i == 0) {
mapArray [i][j] = WALL;
passableArray [i][j] = NOT_PASS;
}
else if (i == (NUM_ROWS - 1)) {
mapArray [i][j] = WALL;
passableArray [i][j] = NOT_PASS;
}
else if (j == 0) {
mapArray [i][j] = WALL;
passableArray [i][j] = NOT_PASS;
}
else if (j == (NUM_COLS - 1)) {
mapArray [i][j] = WALL;
passableArray [i][j] = NOT_PASS;
}
else {
mapArray [i][j] = FLOOR;
passableArray [i][j] = PASS;
}
charLoc[i][j].CharPointers.pPointer = NULL;
}
}
read an electric signal through sound card c++
read an electric signal through sound card
CWaveFile g_pWaveFile;
WAVEFORMATEX wfxInput;
ZeroMemory( &wfxInput, sizeof(wfxInput));
wfxInput.wFormatTag = WAVE_FORMAT_PCM;
wfxInput.nSamplesPerSec = 22050
wfxInput.wBitsPerSample = 8;
wfxInput.nChannels = 1;
wfxInput.nBlockAlign =
wfxInput.nChannels * (wfxInput.wBitsPerSample / 8);
wfxInput.nAvgBytesPerSec =
wfxInput.nBlockAlign * wfxInput.nSamplesPerSec;
g_pWaveFile = new CWaveFile;
if (FAILED(g_pWaveFile->Open("mywave.wav", &wfxInput,
WAVEFILE_WRITE)))
{
g_pWaveFile->Close();
}
=============================================
HRESULT RecordCapturedData()
{
HRESULT hr;
VOID* pbCaptureData = NULL;
DWORD dwCaptureLength;
VOID* pbCaptureData2 = NULL;
DWORD dwCaptureLength2;
VOID* pbPlayData = NULL;
UINT dwDataWrote;
DWORD dwReadPos;
LONG lLockSize;
if (NULL == g_pDSBCapture)
return S_FALSE;
if (NULL == g_pWaveFile)
return S_FALSE;
if (FAILED (hr = g_pDSBCapture->GetCurrentPosition(
NULL, &dwReadPos)))
return hr;
// Lock everything between the private cursor
// and the read cursor, allowing for wraparound.
lLockSize = dwReadPos - g_dwNextCaptureOffset;
if( lLockSize < 0 ) lLockSize += g_dwCaptureBufferSize;
if( lLockSize == 0 ) return S_FALSE;
if (FAILED(hr = g_pDSBCapture->Lock(
g_dwNextCaptureOffset, lLockSize,
&pbCaptureData, &dwCaptureLength,
&pbCaptureData2, &dwCaptureLength2, 0L)))
return hr;
// Write the data. This is done in two steps
// to account for wraparound.
if (FAILED( hr = g_pWaveFile->Write( dwCaptureLength,
(BYTE*)pbCaptureData, &dwDataWrote)))
return hr;
if (pbCaptureData2 != NULL)
{
if (FAILED(hr = g_pWaveFile->Write(
dwCaptureLength2, (BYTE*)pbCaptureData2,
&dwDataWrote)))
return hr;
}
// Unlock the capture buffer.
g_pDSBCapture->Unlock( pbCaptureData, dwCaptureLength,
pbCaptureData2, dwCaptureLength2 );
// Move the capture offset forward.
g_dwNextCaptureOffset += dwCaptureLength;
g_dwNextCaptureOffset %= g_dwCaptureBufferSize;
g_dwNextCaptureOffset += dwCaptureLength2;
g_dwNextCaptureOffset %= g_dwCaptureBufferSize;
return S_OK;
}
c program for arriving at a solution using bisection method
c program for arriving at a solution using bisection method
main()
{
float a,b,c,x1,x2,x,series;
double d;
printf("enter a,b,c and x1(pos) & x2(neg)");
scanf("%f%f%f%f%f", &a, &b, &c, &x1, &x2);
read:
x = (x1 + x2) / 2;
series = a * x * x + b * x + c;
d = fabs(series);
if (d > 0.0001)
{
if (x * x1 < 0)
x = x2;
else
x = x1;
goto read;
}
else
{
printf("ans=%f", x);
}
return 0;
}