C Program to Find the Greatest Number of Three Numbers

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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.


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