题解 | #牛牛的短信#

#include <stdio.h>

int main() {
    int num,words;
    float price=0.0;
    scanf("%d",&num);
    int i;
    for(i=1;i<=num;i++)
    {
        scanf("%d",&words);
        if(words>60)
            price+=0.2;
        else if(words<=60&&words>=0)
            price+=0.1;
    }
    printf("%.1f",price);
    return 0;
}