Submission #430466

#	Time	Username	Problem	Language	Result	Execution time	Memory
430466		HappyPacMan	Coin Collecting (JOI19_ho_t4)	C++14	100 / 100	116 ms	5784 KiB

joi2019_ho_t4

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

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	
	int N;
	cin >> N;
	int64_t cost = 0;
	vector<vector<int> > coins(N,vector<int>(2));
	for(int i=0;i<2*N;i++){
		int X,Y;
		cin >> X >> Y;
		if(X > N) cost += X-N;
		else if(X < 1) cost += 1-X;
		if(Y > 2) cost += Y-2;
		else if(Y < 1) cost += 1-Y;
		X = min(N,max(1,X));
		Y = min(2,max(1,Y));
		coins[X-1][Y-1]++;
	}
	int more[] = {0,0};
	for(int i=0;i<N;i++){
		more[0] += coins[i][0] - 1;
		more[1] += coins[i][1] - 1;
		if(more[0] < 0){
			int temp = min(-more[0],max(0,more[1]));
			cost += temp;
			more[0] += temp;
			more[1] -= temp;
		}
		if(more[1] < 0){
			int temp = min(-more[1],max(0,more[0]));
			cost += temp;
			more[1] += temp;
			more[0] -= temp;
		}
		cost += abs(more[0]) + abs(more[1]);
	}
	cout << cost << "\n";
}

• Subtask 1: 8 / 8
• Subtask 2: 29 / 29
• Subtask 3: 63 / 63