Submission #1131367

#	Time	Username	Problem	Language	Result	Execution time	Memory
1131367		Champ_Naman	Painting Walls (APIO20_paint)	C++20	Compilation error	0 ms	0 KiB

paint

#include "paint.h"
#include<bits/stdc++.h>
using namespace std;

int minimumInstructions(int n, int m, int k, std::vector<int> c, std::vector<int> a, std::vector<std::vector<int>> b){
   int pre[k][m];
   for(int i=0; i<k; i++) for(int j=0; j<m; j++) pre[i][j] = 0;

   for(int i=0; i<m; i++){
      for(int j=0; j<a[i]; j++){
         pre[b[i][j]][i] = 1;
      }
   }

   int ans = 0;
   for(int i=0; i<n;){
      int mx = -1e9;
      for(int j=0; j<m; j++){
         if(!pre[c[i]][j]) continue;

         int cnt = 0;
         while(i + cnt < n and pre[c[i + cnt]][(j + cnt) % m] and cnt < m){
            cnt++;
         }

         if(i - (m-cnt) < 0) continue;

         int tf = 1;
         for(int k=j-1, x=1; x<=m-cnt; k--, x++){
            k = (k+m) % m;
            if(!pre[c[i-x]][k]) tf = 0;
         }
         
         if(tf){
            mx = std::max(mx, i+cnt);
         }
      }

      if(mx == -1e9) return -1;
      i = mx;
      ans++;
   }

   return ans;
}

signed main(){
   ios_base::sync_with_stdio(0);
   cin.tie(NULL);cout.tie(NULL);

   int n, m, k;
   cin>>n>>m>>k;
   vector<int> c;
   for(int i=0; i<n; i++){
      int x;
      cin>>x;
      c.push_back(x);
   }

   vector<int> a(m);
   vector<vector<int>> b(m);
   for(int i=0; i<m; i++){
      cin>>a[i];
      for(int j=0; j<a[i]; j++){
         int x;
         cin>>x;
         b[i].push_back(x);
      }
   }

   cout<<minimumInstructions(n, m, k, c, a, b);

   return 0;
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccrh5LEo.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccudvs0T.o:paint.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status