제출 #794529

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
794529		finn__	던전 (IOI21_dungeons)	C++17	0 / 100	4 ms	472 KiB

dungeons

#include <bits/stdc++.h>

#include "dungeons.h"

using namespace std;

constexpr size_t N = 400001, K = 26;

size_t n;
uint64_t f[K][N][3];
vector<int> s, p, w, l;

void init(int n_, vector<int> s_, vector<int> p_, vector<int> w_, vector<int> l_)
{
    n = n_;
    s = move(s_);
    p = move(p_);
    w = move(w_);
    l = move(l_);

    for (size_t i = 0; i < n; ++i)
    {
        f[0][i][0] = l[i];
        f[0][i][1] = p[i];
        f[0][i][2] = s[i];
    }

    f[0][n][0] = n;

    for (size_t j = 0; j < K; ++j)
    {
        for (size_t i = 0; i < n; ++i)
        {
            size_t const intermediate = f[j - 1][i][0];
            f[j][i][0] = f[j - 1][intermediate][0];
            f[j][i][1] = f[j - 1][i][1] + f[j - 1][intermediate][1];
            f[j][i][2] = max(f[j - 1][i][2], f[j - 1][intermediate][2] - min(f[j - 1][intermediate][2], f[j - 1][i][1]));
        }
    }
}

long long simulate(int x, int z)
{
    long long strength = z;

    while (x != n)
    {
        for (size_t j = K - 1; j < K; --j)
            if (f[j][x][2] < strength)
            {
                strength += f[j][x][1];
                x = f[j][x][0];
                break;
            }
        if (x != n)
        {
            if (strength >= s[x])
            {
                strength += s[x];
                x = w[x];
            }
            else
            {
                strength += p[x];
                x = l[x];
            }
        }
    }

    return strength;
}

컴파일 시 표준 에러 (stderr) 메시지

dungeons.cpp: In function 'long long int simulate(int, int)':
dungeons.cpp:46:14: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     while (x != n)
      |            ~~^~~~
dungeons.cpp:49:28: warning: comparison of integer expressions of different signedness: 'uint64_t' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   49 |             if (f[j][x][2] < strength)
      |                 ~~~~~~~~~~~^~~~~~~~~~
dungeons.cpp:55:15: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         if (x != n)
      |             ~~^~~~

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