제출 #929722

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
929722		abcvuitunggio	던전 (IOI21_dungeons)	C++17	11 / 100	7110 ms	1980552 KiB

dungeons

#include "dungeons.h"
#include <bits/stdc++.h>
using namespace std;
const int base=4,sz=13;
const long long INF=1e18;
int N,nxt[24][400001][sz],mn[24][400001][sz];
long long sum[24][400001][sz];
vector <int> S,P,W,L,ve={1};
void init(int n, vector <int> s, vector <int> p, vector <int> w, vector <int> l){
    N=n,S=s,P=p,W=w,L=l;
    for (int i=1;i<sz-1;i++)
        ve.push_back(ve.back()*base);
    ve.push_back(10000001);
    memset(nxt,-1,sizeof(nxt));
    for (int i=0;i<n;i++){
        for (int j=0;j<sz;j++)
            if (s[i]<=ve[j]){
                nxt[0][i][j]=w[i];
                sum[0][i][j]=s[i];
                mn[0][i][j]=INF;
            }
            else{
                nxt[0][i][j]=l[i];
                sum[0][i][j]=p[i];
                mn[0][i][j]=s[i];
            }
        nxt[0][i][sz]=w[i];
    }
    for (int j=1;j<24;j++){
        for (int i=0;i<n;i++)
            for (int k=0;k<sz;k++){
                if (nxt[j-1][i][k]==-1)
                    continue;
                int u=nxt[j-1][i][k];
                nxt[j][i][k]=nxt[j-1][u][k];
                mn[j][i][k]=min(mn[j-1][i][k],(int)max(mn[j-1][u][k]-sum[j-1][i][k],0LL));
                sum[j][i][k]=sum[j-1][i][k]+sum[j-1][u][k];
            }
    }
}
long long simulate(int x, int Z){
    int cur=0;
    long long z=Z;
    while (x<N){
        while (cur<sz&&ve[cur]<=z)
            cur++;
        if (cur==sz)
            break;
        int j=cur-1;
        for (int i=23;i>=0;i--)
            if (nxt[i][x][j]!=-1&&z<mn[i][x][j]){
                z+=sum[i][x][j];
                x=nxt[i][x][j];
            }
        if (x==N)
            break;
        if (z<S[x]){
            z+=P[x];
            x=L[x];
        }
        else{
            z+=S[x];
            x=W[x];
        }
    }
    int j=cur-1;
    for (int i=18;i>=0;i--)
        if (nxt[i][x][j]!=-1){
            z+=sum[i][x][j];
            x=nxt[i][x][j];
        }
    return z;
}

컴파일 시 표준 에러 (stderr) 메시지

dungeons.cpp: In function 'void init(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
dungeons.cpp:20:29: warning: overflow in conversion from 'long long int' to 'int' changes value from '1000000000000000000' to '-1486618624' [-Woverflow]
   20 |                 mn[0][i][j]=INF;
      |                             ^~~
dungeons.cpp:27:21: warning: array subscript 13 is above array bounds of 'int [13]' [-Warray-bounds]
   27 |         nxt[0][i][sz]=w[i];
      |         ~~~~~~~~~~~~^

• Subtask 1: 11 / 11
• Subtask 2: 0 / 26
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 27
• Subtask 6: 0 / 11