题解 | A-B≠C

//先乘去掉小数点再计算
#include<bits/stdc++.h>
using namespace std;
#define ll long long
int main()
{
    double a,b,c;
    scanf("%lf %lf %lf",&a,&b,&c);
    int x=a*10000000;
    int y=b*10000000;
    int z=c*10000000;
    if(x-y==z) cout<<"YES";
    else cout<<"NO";
    return 0;
}