제출 #409174

#제출 시각아이디문제언어결과실행 시간메모리
409174jamezzzMalnaRISC (COI21_malnarisc)C++14
67.63 / 100
5 ms588 KiB
#include <bits/stdc++.h> using namespace std; #define fi first #define se second #define sf scanf #define pf printf #define pb emplace_back typedef long long ll; typedef pair<int,int> ii; typedef tuple<int,int,int> iii; queue<ii> q1,q2; int use[105]; vector<ii> ans[10005]; int main(){ int n;sf("%d",&n); for(int i=1;i<=n;++i){ for(int j=i+1;j<=n;++j){ q1.push(ii(i,j)); } } int cnt=0; while(!q1.empty()){ ++cnt; memset(use,false,sizeof use); while(!q1.empty()){ ii pr=q1.front();q1.pop(); if(use[pr.fi]||use[pr.se]){ q2.push(pr); continue; } use[pr.fi]=use[pr.se]=true; ans[cnt].push_back(pr); } while(!q2.empty()){ q1.push(q2.front()); q2.pop(); } } pf("%d\n",cnt); for(int i=1;i<=cnt;++i){ for(ii pr:ans[i])pf("CMPSWP R%d R%d ",pr.fi,pr.se); pf("\n"); } }

컴파일 시 표준 에러 (stderr) 메시지

malnarisc.cpp: In function 'int main()':
malnarisc.cpp:18:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |  int n;sf("%d",&n);
      |          ^
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