Submission #520208

#TimeUsernameProblemLanguageResultExecution timeMemory
520208A_DDungeons Game (IOI21_dungeons)C++17
25 / 100
7008 ms97704 KiB
#include "dungeons.h" #include <bits/stdc++.h> using namespace std; const int N=4e5+100; const int L=26; int st[N][L][6]; long long we[N][L][6]; set<int> stt; vector<long long> vec; int sz; int nnn; void init(int nn,vector<int> s,vector<int> p,vector<int> w,vector<int> l){ nnn=nn; for(auto x:s){ stt.insert(x); } vec.push_back(0); for(auto x:stt)vec.push_back(x); vec.push_back(1e18); sz=vec.size(); for(int k=0;k<sz-1;k++){ for(int i=0;i<nnn;i++){ if(vec[k]>=s[i]){ st[i][0][k]=w[i]; we[i][0][k]=s[i]; } else{ st[i][0][k]=l[i]; we[i][0][k]=p[i]; } } st[nnn][0][k]=nnn; for(int j=1;j<L;j++){ for(int i=0;i<=nnn;i++){ st[i][j][k]=st[st[i][j-1][k]][j-1][k]; we[i][j][k]=we[i][j-1][k]+we[st[i][j-1][k]][j-1][k]; } } } } long long simulate(int xx, int zz){ int x=xx; long long z=zz; for(int k=0;k<sz-1;k++){ if((long long)vec[k+1]<=z)continue; for(int j=L-1;j>=0;j--){ int nx=st[x][j][k]; long long nz=z+we[x][j][k]; if(nx!=nnn&&nz<vec[k+1]){ x=nx; z=nz; } } if(x!=nnn&&z<vec[k+1]){ z=z+we[x][0][k]; x=st[x][0][k]; } } return z; }
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