题目477 A+B Problem III

     已AC代码：

 #include<cstdio>using namespace std;int main(){    int t;    scanf("%d", &t);    while(t--)    {        double a, b, c;        scanf("%lf%lf%lf", &a, &b, &c);        if(a+b-c>=-0.0001 && a+b-c<=0.0001)            printf("Yes\n");        else            printf("No\n");    }}