제출 #784388

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
784388		Hanksburger	벽 칠하기 (APIO20_paint)	C++17	100 / 100	1468 ms	265876 KiB

paint

#include "paint.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> v[100005], w[50005];
int ok[100005];
int minimumInstructions(int n, int m, int k, vector<int> c, vector<int> a, vector<vector<int> > b)
{
    for (int i=0; i<m; i++)
        for (int j=0; j<a[i]; j++)
            v[b[i][j]].push_back(i);
    for (int i=0; i<n; i++)
        for (int j=0; j<v[c[i]].size(); j++)
            w[(v[c[i]][j]-i+n)%m].push_back(i);
    for (int i=0; i<m; i++)
    {
        int cnt;
        for (int j=0; j<w[i].size(); j++)
        {
            if (j && w[i][j]-w[i][j-1]==1)
                cnt++;
            else
                cnt=1;
            if (cnt>=m)
                ok[w[i][j]]=1;
        }
    }
    if (!ok[m-1])
        return -1;
    int ind=m-1, ans=1;
    while (ind<n-1)
    {
        int pre=ind;
        for (int i=min(n-1, ind+m); i>ind; i--)
        {
            if (ok[i])
            {
                ind=i;
                break;
            }
        }
        if (ind==pre)
            return -1;
        ans++;
    }
    return ans;
}

컴파일 시 표준 에러 (stderr) 메시지

paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:12:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |         for (int j=0; j<v[c[i]].size(); j++)
      |                       ~^~~~~~~~~~~~~~~
paint.cpp:17:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |         for (int j=0; j<w[i].size(); j++)
      |                       ~^~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 15 / 15
• Subtask 3: 13 / 13
• Subtask 4: 23 / 23
• Subtask 5: 37 / 37