Submission #1309213

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309213		vtnoo	Painting Walls (APIO20_paint)	C++20	Compilation error	0 ms	0 KiB

paint

#include <bits/stdc++.h>
#define L(i, j, k) for(int i = (j); i <= (k); i++)
#define R(i, j, k) for(int i = (j); i >= (k); i--)
#define ll long long
#define sz(a) ((int) a.size())
#define all(a) a.begin(), a.end()
#define vi vector<int>
#define pb emplace_back
#define me(a, x) memset(a, x, sizeof(a))
#define fst first
#define snd second
#define ii pair<int, int>
using namespace std;
int f[205][505];
int minimumInstructions(int N, int M, int K, std::vector<int> C, std::vector<int> A, std::vector<std::vector<int>> B) {
	vi r(N);
	vector<set<int>>f(M);
	L(i,0,M-1){
		L(j,0,A[i]-1){
			f[i][B[i][j]]=1; //puedo pintar estos colores con el contractor i
		}
	}
	auto valid=[&](int x,int y)->bool{
		L(i,0,M-1){
			if(!f[y][C[x]])return false;
			x++,y++,y%=M;
		}
		return true;
	};
	L(x,0,N-M){
		L(y,0,M){
			if(valid(x,y)){
				r[x]=max(r[x],x+M-1);
			}
		}
	}
	int i=0,ans=0;
	while(i<N){
		i=r[i];
		ans++;
		i++;
	}
	return ans;
}

Compilation message (stderr)

paint.cpp: In function 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:20:29: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::set<int> >, std::set<int> >::value_type' {aka 'std::set<int>'} and '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'})
   20 |                         f[i][B[i][j]]=1; //puedo pintar estos colores con el contractor i
      |                             ^
paint.cpp: In lambda function:
paint.cpp:25:33: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::set<int> >, std::set<int> >::value_type' {aka 'std::set<int>'} and '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'})
   25 |                         if(!f[y][C[x]])return false;
      |                                 ^