제출 #434169

#제출 시각아이디문제언어결과실행 시간메모리
434169mosiashvililukaHandcrafted Gift (IOI20_gift)C++14
0 / 100
1 ms204 KiB
#include "gift.h" #include<bits/stdc++.h> using namespace std; int a,b,c,d,e,i,j,ii,jj,zx,xc,tes,t,f[500009],NO,rg[500009],MX[500009]; string S; pair <pair <int, int>, int> p[500009]; int construct(int Nn, int Rr, std::vector<int> Aa, std::vector<int> Bb, std::vector<int> Xx) { a=Nn;tes=Rr; for(t=1; t<=tes; t++){ p[t].first.first=Aa[t-1]+1;p[t].first.second=Bb[t-1]+1; p[t].second=Xx[t-1]; } for(i=1; i<=a; i++){ f[i]=0;rg[i]=i+1; } sort(p+1,p+tes+1); zx=0;c=0; for(t=1; t<=tes; t++){ if(p[t].second==2) continue; if(zx<p[t].first.first){ c=p[t].first.first;zx=p[t].first.second; }else{ zx=max(zx,p[t].first.second); rg[c]=zx; } rg[c]=zx; } i=1;j=0; while(i<=a){ for(ii=i; ii<=rg[i]; ii++) f[ii]=j; j^=1;i=rg[i]+1; } for(i=2; i<=a; i++){ if(f[i]!=f[i-1]){ MX[i]=i-1; }else{ MX[i]=MX[i-1]; } } for(t=1; t<=tes; t++){ if(p[t].second==1) continue; if(p[t].first.first==p[t].first.second){ return 0; } if(MX[p[t].first.second]>=p[t].first.first){ }else{ return 0; } } for(i=1; i<=a; i++){ if(f[i]==0){ S+="R"; }else{ S+="B"; } } craft(S); return 1; }
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