코스프로 3급 1번
C
#include <stdio.h>
int main() {
int n;
int sum;
scanf("%d", &n);
int arr[n];
for(int i=0;i<n;i++){
scanf("%d",&arr[i]);
}
for(int i=0;i<n;i++){
if(i % 2==1){
sum+=arr[i];
}
}
printf("%d",sum);
}
Output
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