#include <stdio.h> float cost(int num[],int n) { int i = 0; float money = 0; for(i=0;i<n;i++) { if(num[i]<= 60) { money +=0.1; } else money += 0.2; } return money; } int main() { int n; int num[10];//利用数组来存储短信字数个数 scanf("%d",&n); getchar (); for(int i=0;i<n;i++) { scanf("%d",&num[i]); } float money; money = cost(num,n); printf("%0.1f",money); return 0; }