Submission #1200606

#TimeUsernameProblemLanguageResultExecution timeMemory
1200606Mohamed_Kachef06Painting Walls (APIO20_paint)C++17
0 / 100
1 ms2632 KiB
#include "paint.h" #include <vector> #include <bits/stdc++.h> using namespace std; #define all(x) x.begin() , x.end() const int N = 1e5 , K = 1e5; bool valid[N+1]; int dp[N+1]; vector<int> f[K+1]; 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 (auto j : B[i]) f[j].push_back(i); } for (int x = 0 ; x < M ; x++){ for (int y = 0 ; y <= N - M ; y++){ bool v = 1; for (int l = 0 ; l < M ; l++){ int cons = (x + l)%M , cell = C[y + l]; v&= binary_search(all(f[cell]) , cons); } valid[y]|=v; } } for (int i = 1 ; i <= N ; i++) dp[i] = 2e9; for (int i = 1 ; i <= N ; i++){ for (int j = max(0 , i-M) ; j <= min(i , N-M) ; j++){ if (valid[j]) dp[i] = min(dp[i] , dp[j] + 1); } } return (dp[N] == INT_MAX ? -1 : dp[N]); } // dp[i] = min(dp[j]) for all j >= i - m and there
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