Submission #1201569

#	Time	Username	Problem	Language	Result	Execution time	Memory
1201569		A_M_Namdar	Painting Walls (APIO20_paint)	C++20	Compilation error	0 ms	0 KiB

paint

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

const int N = 1e5 + 10;
int dp[2][N];
vector<int> pos[N];
bool mark[N];
/*
void input() {
	cin >> n >> m >> k;
	for (int i = 0; i < n; i++) 
		cin >> c[i];
	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);
			pos[x].push_back(i);
		}
	}
}*/

void minimumInstructions(int n, int m, int k, vector<int> c, vector<int> a, vector<vector<int>> b) {
	for (int i = 0; i < n; i++) 
		for (int j: b[i]) 
			pos[j].push_back(i);
	vector<int> vec;
	for (int i = 0; i < m; i++) 
		vec.push_back(i);
	for (int i = n - 1; i >= 0; i--) {
		vector<int> vec2;
		for (int j: pos[c[i]]) {
			vec2.push_back(j);
			dp[i & 1][j] = dp[(i + 1) & 1][(j + 1) % m] + 1;
			if (dp[i & 1][j] >= m) 
				mark[i] = true;
		}
		for (int j: vec) 
			dp[(i + 1) & 1][j] = 0;
		swap(vec, vec2);
//		cout << i << ' ' << mark[i] << '\n';
	}
	if (!mark[0]) 
		return -1;
	int p = m, ans = 1;
	while (p < n) {
		for (int i = 0; i < m; i++) {
			if (p - i >= 0 && mark[p - i]) {
				ans++;
				p = p - i + m;
				break;
			}
			if (i == m - 1) 
				return -1;
		}
	}
	return ans;
}
/*
int main() {
	ios:: sync_with_stdio(0), cin.tie(0), cout.tie(0);
	input();
	solve();
}*/

Compilation message (stderr)

paint.cpp:25:6: error: ambiguating new declaration of 'void minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)'
   25 | void minimumInstructions(int n, int m, int k, vector<int> c, vector<int> a, vector<vector<int>> b) {
      |      ^~~~~~~~~~~~~~~~~~~
In file included from paint.cpp:1:
paint.h:3:5: note: old declaration 'int minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)'
    3 | int minimumInstructions(
      |     ^~~~~~~~~~~~~~~~~~~
paint.cpp: In function 'void minimumInstructions(int, int, int, std::vector<int>, std::vector<int>, std::vector<std::vector<int> >)':
paint.cpp:46:24: error: return-statement with a value, in function returning 'void' [-fpermissive]
   46 |                 return -1;
      |                        ^~
paint.cpp:56:40: error: return-statement with a value, in function returning 'void' [-fpermissive]
   56 |                                 return -1;
      |                                        ^~
paint.cpp:59:16: error: return-statement with a value, in function returning 'void' [-fpermissive]
   59 |         return ans;
      |                ^~~