Index

#include <stdio.h>
int bigindex(double array[], int size);

int main(void){
    double array1[]={-23.23,129,90.02,123.123,900.2321};
    printf("The index of the biggest number is %d.\n", bigindex(array1, 5));
    return 0;
}

int bigindex(double array[], int size){
    int i, index;
    double biggest=-1000;
    for(i=0; i<size; i++){
        if(array[i]>biggest){
            biggest=array[i];
            index=i;
        }
    }

    return index;

}