# C-Programming Tutorials

## C Program to Find the Greatest Number of Three Numbers

This C Program is used to find the greatest number of three numbers.

#### Program:

#include <stdio.h>

int main(){

int a, b, c;

printf("Enter a,b,c: ");

scanf("%d %d %d", &a, &b, &c);

if (a > b && a > c) {

printf("a is Greater than b and c");

}

else if (b > a && b > c) {

printf("b is Greater than a and c");

}

else if (c > a && c > b) {

printf("c is Greater than a and b");

}

else {

printf("all are equal or any two values are equal");

}

return 0;

}

#### Program Output:

Enter a,b,c: 3 5 8

c is Greater than a and b

#### Explanation:

Consider three numbers a=5,b=4,c=8

if(a>b && a>c) then a is greater than b and c

now check this condition for the three numbers 5,4,8 i.e.

if(5>4 && 5>8) /* 5>4 is true but 5>8 fails */

so the control shifts to else if condition

else if(b>a && b>c) then b is greater than a and c

now checking this condition for 5,4,8 i.e.

else if(4>5 && 4>8) /* both the conditions fail */

now the control shifts to the next else if condition

else if(c>a && c>b) then c is greater than a and b

now checking this condition for 5,4,8 i.e.

else if(8>5 && 8>4) /* both conditions are satisfied */

Thus c is greater than a and b.