Submission #1003891

#	Time	Username	Problem	Language	Result	Execution time	Memory
1003891		vjudge1	Paint (COI20_paint)	C++17	9 / 100	105 ms	10132 KiB

paint

#include<bits/stdc++.h>

using namespace std;

const int N = 200010;

int v[N];

int main(){
	int r, s;
	cin >> r >> s;
	int n = s;
	int q;
	for(int i = 0;i < n;i++){
		cin >> v[i];
	}
	set <array <int, 3>> ranges;
	for(int i = 0;i < n;i++){
		int l = i, r = i;
		while(v[l] == v[r] and r < n){
			r++;
		}
		r--;
		ranges.insert({l, r, v[i]});
		i = r;
	}
	cin >> q;
	for(int i = 0;i < q;i++){
		int _, t, cor;
		cin >> _ >> t >> cor;
		t--;
		auto it = ranges.lower_bound({t, n+10, 0});
		it--;
		int l = (*it)[0], r = (*it)[1];
		ranges.erase(it);
		it = ranges.lower_bound({t, n+10, 0});
		if((*it)[2] == cor) {
			r = (*it)[1];
			ranges.erase(it);
		}
		it = ranges.lower_bound({t, n+10, 0});
		if(it != ranges.end()){
			it--;
			if((*it)[2] == cor) {
				l = (*it)[0];
				ranges.erase(it);
			}
		}	
		ranges.insert({l, r, cor});
	}
	for(auto x : ranges){
		for(int i = x[0];i <= x[1];i++){
			cout << x[2] << ' ';
		}
	}
	cout << endl;
}

• Subtask 1: 0 / 8
• Subtask 2: 9 / 9
• Subtask 3: 0 / 31
• Subtask 4: 0 / 52