Searching in arr

#1

#include
using namespace std;

int main()

{
int arr[]={12,45,89,63,57,-96,32};

int n=sizeof(arr)/sizeof(arr[0]);

int key=0,i;

for( i=0;i<n;i++){
    if(arr[i]==key){
        cout<<i<<endl;
        break;
    }
    
    }
    if(i==n){
        cout<<-1<<endl;
}
return 0;

}

so in this code at last why we have written -1 in the last cout statement

#2

hi @shwetap1100_980008b8ff2159cd if u dont find the element then u need to print -1