Submission #1229815

#TimeUsernameProblemLanguageResultExecution timeMemory
1229815nhnguyen14Sob (COCI19_sob)C++20
0 / 110
0 ms324 KiB
#include<bits/stdc++.h> using namespace std; typedef long long LL; const int MAXLOG=20; const int N=(int)1e6; int n,m; namespace subtask1{ bool check(){ return n+m<=1000; } bool f[N+2]={}; void main_code(){ for(int i=n-1;i>=0;--i){ for(int j=m+n-1;j>=m;--j){ if (f[j]==false && (j&i)==i){ cout<<i<<' '<<j<<'\n'; f[j]=true; break; } } } return; } } int main(){ ios::sync_with_stdio(false); cin.tie(0) ; cout.tie(0); #define task "main" if (fopen(task".inp","r")){ freopen(task".inp","r",stdin); // freopen(task".out","w",stdout); } cin>>n>>m; if (subtask1::check()) return subtask1::main_code(),0; assert(false); return 0; }

Compilation message (stderr)

sob.cpp: In function 'int main()':
sob.cpp:35:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |                 freopen(task".inp","r",stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
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