#include <stdio.h>

int main(){

int a,b; scanf("%d %d",&a,&b);

printf("%f",1.0ab/2);

return 0;

}

答案没有考虑小数问题,但是你考虑的话,会给0分(比如我写的上面这个)。😕

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ID
7
Time
1000ms
Memory
256MiB
Difficulty
4
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