Submission #550498

#	Time	Username	Problem	Language	Result	Execution time	Memory
550498		Jarif_Rahman	Painting Walls (APIO20_paint)	C++17	28 / 100	1576 ms	9072 KiB

paint

#include "paint.h"
#include <bits/stdc++.h>
#define pb push_back
#define f first
#define sc second
using namespace std;
typedef long long int ll;
typedef string str;

int minimumInstructions(int n, int m, int K, vector<int> C, vector<int> A, vector<vector<int>> B){
    vector<unordered_set<int>> likes(m);
    for(int i = 0; i < m; i++) for(int x: B[i]) likes[i].insert(x);

    vector<bool> p(n, 0);
    
    for(int i = n-m; i >= 0; i--){
        for(int j = 0; j < m; j++){
            bool ok = 1;
            for(int k = 0; k < m; k++) if(likes[(j+k)%m].find(C[i+k]) == likes[(j+k)%m].end())
                ok = 0;
            p[i] = p[i]|ok;
        }
    }

    int ans = 0, ls = -1, c = 0;
    for(int i = n-1; i >= 0; i--){
        c++;
        if(p[i]) ls = i;
        if(c == m || i == 0){
            if(ls == -1) return -1;
            ans++;
            c=ls-i;
            ls = -1;
        }
    }

    return ans;
}

• Subtask 1: 0 / 12
• Subtask 2: 15 / 15
• Subtask 3: 13 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 37