Sample should be 19

NinjaIce 2023-09-27 15:21:33 2023-09-27 15:21:58 4 返回题目

#include<bits/stdc++.h> using namespace std; int main(){ int r1,r2,s; cin>>r1>>s; cout<<s*2-r1<<endl; return 0; }、、、

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