List of Basic Programs

 C Program to add two numbers
```#include<stdio.h >
int main( ) {
int a, b,c;
printf("Enter Values A and B: ");
scanf("%d%d",&a,&b);
c = a+b;
printf("RESULT : %d\n",c);
return 0;
}```
OUTPUT :
```Enter Values A and B :
12 13
RESULT : 25```
 C Program to swap values of two no.s
```#include< stdio.h >
int main( ) {
int a, b, temp;
printf("Enter Values A and B: ");
scanf("%d%d",&a,&b);
printf("BEFORE :");
printf("A=%d B=%d\n",a,b);
temp = a;
a = b;
b = temp;
printf("AFTER :");
printf("A=%d B=%d\n",a,b);
return 0;
}```
OUTPUT :
```Enter Values for A and B :
12 13
BEFORE: A=12 B=13
AFTER : A=13 B=12```
 C Program to swap values of two no.s without using third variable
```#include<<stdio.h >
int main( ) {
int a, b;
printf("Enter Values for A and B: ");
scanf("%d%d",&a,&b);
printf("BEFORE :");
printf("A=%d B=%d\n",a,b);
a = a+b;
b = a-b;
a = a-b;
printf("AFTER :");
printf("A=%d B=%d\n",a,b);
return 0;
}```
OUTPUT :
```Enter Values for A and B :
17 19
BEFORE: A=17 B=19
AFTER : A=19 B=17
```
 C Program to calculate the area of circle
```#include< stdio.h >
int main( )
{
const float pi = 3.14f;
printf("CIRCLE DETAILS:\n");
printf("AREA:%f\n",area);
return 0;
}```
OUTPUT :
```Enter radius : 8.2
CIRCLE DETAILS:
AREA :211.1336```
 C Program to find cube of a number
```#include<stdio.h >
int main( ) {
int n, cb;
printf("Enter Value for N : ");
scanf("%d",&n);
cb = n*n*n;
printf("CUBE IS : %d\n",cb);
return 0;
}```
OUTPUT :
```Enter Value for N : 3
CUBE IS : 27```
 C Program to find square root of a number.
```#include<stdio.h >
#include<math.h >
int main( ) {
float n, sq;
printf("Enter Value for N : ");
scanf("%f",&n);
sq = sqrt(n);
printf("SQUARE ROOT IS : %f\n",sq);
return 0;
}```
OUTPUT :
```Enter Value for N : 16
SQUARE ROOT IS : 4.0```

 C Program to find x to the power y (xy).
```#include< stdio.h >
#include< math.h >
int main( ) {
int x,y,res;
printf("Enter Values for X & Y : ");
scanf("%d%d",&x,&y);
res = pow(x,y);
printf("X^Y IS : %d\n",res);
return 0;
}```
OUTPUT :
```Enter Values for X & Y :
4 3
X^Y IS : 64```
 C Program to convert temp from Fahrenheit to Celsius.
```#include<stdio.h >
int main( ) {
float c,f;
printf("Enter Temp in (F) : ");
scanf("%f",&f);
c = (5.0/9.0)*(f-32);
printf("Temp in Celsius : %f\n",c);
return 0;
}```
OUTPUT :
```Enter Temp in (F): 42
Temp in Celsius: 5.55556
```
 C Program to input time in millisecond s and show in minutes and seconds.
```#include< stdio.h >
int main( ) {
int tms, tm, ts;
printf("Enter Time in millis : ");
scanf("%d",&tms);
ts = tms/1000;
tm = ts/60;
ts = ts%60;
printf("TIME(mm:ss) - %d:%d",tm,ts);
return 0;
}```
OUTPUT :
```Enter Time in millis:863534
TIME(mm:ss) - 14:39```
 C Program to find difference between two numbers, diff must be positive.
```#include<stdio.h >
int main( ) {
int a, b, diff;
printf("Enter Values for A : ");
scanf("%d",&a);
printf("Enter Values for B : ");
scanf("%d",&b);
diff = (a>b) ? a-b : b-a;
printf("DIFFERENCE IS : %d\n",diff);
return 0;
}```
OUTPUT :
```Enter Values for A : 62
Enter Values for A : 95
DIFFERENCE IS : 33```
 C Program to find greatest among two numbers using ternary operator.
```#include<stdio.h >
int main( ) {
int a, b;
printf("Enter Values for A : ");
scanf("%d",&a);
printf("Enter Values for B : ");
scanf("%d",&b);
(a>b)? printf("A is Greatest\n")  :  printf("B is Greatest\n");
return 0;
}```
OUTPUT :
```Enter Values for A : 62
Enter Values for B : 119
B is Greatest```

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