Submission #981511

#TimeUsernameProblemLanguageResultExecution timeMemory
981511AbitoPainting Walls (APIO20_paint)C++17
0 / 100
1 ms348 KiB
#include "paint.h" #include <bits/stdc++.h> #define pb push_back #define ep insert using namespace std; int minimumInstructions( int n, int m, int k, vector<int> C, vector<int> A, vector<vector<int>> B){ int D[k],R[n]; for (int i=0;i<n;i++) R[i]=0; for (int i=0;i<k;i++) D[i]=-1; for (int i=0;i<m;i++) for (auto u:B[i]) D[u]=i; for (int i=0;i<k;i++) if (D[i]==-1) return -1; for (int i=0;i<n;i++){ int r=i; for (int j=0;j<n-i;j++){ if (D[i+j]==(D[i]+j)%m) r=j+i; else break; } for (int j=i;j<=r;j++) R[j]=r; } int ans=0; for (int i=0;i<n;i++){ if (R[i]-i<m-1) return -1; int len=R[i]-i+1; ans+=len/m+bool(len%m); i=R[i]; }return ans; }
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