题解

#include <bits/stdc++.h>
using namespace std;
int main(){
    double x ,y;
    cin >> x >> y;
    if (abs(x) <= 1 && abs(y) <= 1)  //绝对值yyds!!（doge
        cout << "yes";
    else
        cout << "no";
    returnrn 0;
}