题解

和a/b==c?题解差不多，把/改成*就行了

#include<iostream>
using namespace std;
bool cheng(int a,int b,int c){
    return a*b==c;
}
int main(){
    int a,b,c;
    cin>>a>>b>>c;
    if(cheng(a,b,c)) cout<<"YES";
    else cout<<"NO";
    return 0;
}