39 lines
790 B
C++
39 lines
790 B
C++
#include <stdio.h>
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#include <string.h>
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#include <iostream>
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#include <algorithm>
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#include <vector>
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#include <queue>
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#include <set>
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#include <map>
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#include <string>
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#include <math.h>
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#include <stdlib.h>
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#include <time.h>
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using namespace std;
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int main()
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{
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int T;
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scanf("%d",&T);
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while(T--)
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{
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double sum = 0;
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double a;
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for(int i = 0;i < 12;i++)
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{
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scanf("%lf",&a);
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sum += a;
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}
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sum /= 12;
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char str[1000];
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sprintf(str,"%.2f",sum);
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int len = strlen(str);
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if(str[len-2] == '0' && str[len-1] == '0')
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str[len-3] = 0;
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else if(str[len-1] == '0')
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str[len-1] = 0;
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printf("$%s\n",str);
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}
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return 0;
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}
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