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This C Program is used to find the greatest among ten numbers.



Program:

#include <stdio.h>
  int main() {
    int a[10];
    int i;
    int greatest;
    printf("Enter ten values:");
    //Store 10 numbers in an array
    for (i = 0; i < 10; i++) {
        scanf("%d", &a[i]);
    }
    //Assume that a[0] is greatest
    greatest = a[0];
    for (i = 0; i < 10; i++) {
        if (a[i] > greatest) {
        greatest = a[i];
    }
    }
    printf("
    Greatest of ten numbers is %d", greatest);
    return 0;
  }

Program Output:

Enter ten values: 2 53 65 3 88 8 14 5 77 64 Greatest of ten numbers is 88

Explanation:

Entered values are 2, 53, 65, 3, 88, 8, 14, 5, 77, 64
They are stored in an array of size 10. let a[] be an array holding these values.
/* how the greatest among ten numbers is found */
Let us consider a variable 'greatest'. At the beginning of the loop, variable 'greatest' is assigned with the value of the first element in the array greatest=a[0]. Here variable 'greatest' is assigned 2 as a[0]=2.

Below loop is executed until the end of the array 'a[]';.

for(i=0; i<10; i++){
if(a[i]>greatest){
    greatest= a[i];
}
}

For each value of 'i', value of a[i] is compared with value of variable 'greatest'. If any value greater than the value of 'greatest' is encountered, it would be replaced by a[i]. After completion of 'for' loop, the value of variable 'greatest' holds the greatest number in the array. In this case, 88 is the greatest of all the numbers.



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