oj.uz

답안 #674435

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
674435 2022-12-24T07:27:07 Z QwertyPi Costinland (info1cup19_costinland) C++14
20 / 100
 3 ms 4180 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

char c[501][501];

void defa(int n, int m){
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++){
			if(i != n - 1 && j != m - 1) { if(c[i][j] != 'X') c[i][j] = '.'; }
			else if((i == n - 1) && (j == m - 1)) c[i][j] = '.';
			else if(i == n - 1) c[i][j] = 'r';
			else c[i][j] = 'd';
		}
	}
}

void pr(int n, int m){
	cout << n << ' ' << m << endl;
	for(int i = 0; i < n; i++){
		for(int j = 0; j < m; j++){
			cout << c[i][j];
		}
		cout << endl;
	}
}

void part1(int K){
	int n = 0, m = 0;
	if(K <= 5){
		n = 2; m = 5;
		defa(n, m);
		for(int i = 0; i < K - 1; i++){
			c[0][i] = 'X';
		}
		pr(n, m);
	}else if(K <= 8){
		n = 5; m = 5;
		defa(n, m);
		for(int i = 0; i < 4; i++){
			c[0][i] = 'X';
		}
		for(int i = 0; i < K - 4; i++){
			c[i][0] = 'X';
		}
		pr(n, m);
	}else if(K <= 10){
		n = 5; m = 5;
		defa(n, m);
		for(int i = 0; i < 4; i++){
			c[0][i] = 'X';
		}
		for(int i = 0; i < K - 6; i++){
			c[i][0] = 'X';
		}
		c[1][1] = 'X';
		pr(n, m);
	}else if(K <= 12){
		n = 5; m = 5;
		defa(n, m);
		for(int i = 0; i < 4; i++){
			c[0][i] = 'X';
		}
		for(int i = 0; i < K - 8; i++){
			c[i][0] = 'X';
		}
		c[1][1] = 'X';
		c[2][2] = 'X';
		pr(n, m);
	}else if(K <= 16){
		n = 5; m = 5;
		defa(n, m);
		for(int i = 0; i < 3; i++){
			c[0][i] = c[1][i] = 'X';
		}
		K -= 10;
		if(K){
			c[2][min(3LL, K) - 1] = 'X';
			K -= min(3LL, K);
		}
		if(K){
			c[3][min(3LL, K) - 1] = 'X';
			K -= min(3LL, K);
		}
		pr(n, m);
	}else if(K <= 19){
		n = 5; m = 5;
		defa(n, m);
		for(int i = 0; i < 4; i++){
			c[0][i] = c[1][i] = 'X';
		}
		K -= 15;
		if(K){
			c[2][min(4LL, K) - 1] = 'X';
			K -= min(4LL, K);
		}
		if(K){
			c[3][min(4LL, K) - 1] = 'X';
			K -= min(4LL, K);
		}
		pr(n, m);
	}
}

__int128_t C[501][501];

ostream& operator<<(ostream& out, __int128_t x){
	string s; while(x) s.push_back('0' + x % 10), x /= 10;
	reverse(s.begin(), s.end()); return out << s;
}

bool part2(int K){
	if(K <= 49){
		int n = 49, m = 49; defa(n, m);
		for(int i = 0; i < K - 1; i++) c[0][i] = 'X';
		pr(n, m); return true;
	}
	int m = 49;
	for(int l = 1; l <= 30; l++){
		if(K <= C[m - 1][l + 1]){
			K -= C[m - 1][l];
			for(int j = 0; j < l; j++){
				for(int i = 0; i <= m - 2; i++){
					c[j][i] = 'X';
				}
			}
			int j = l;
			for(;; j++){
				for(int k = m - 2; k >= 0; k--){
					if(K >= C[k][l - 1]){
						K -= C[k][l - 1];
						c[j][k] = 'X';
					}
				}
				if(K == 0) break;
				vector<int> v;
				for(int k = 0; k <= m - 2; k++){
					if(c[j][k] == 'X') v.push_back(k);
				}
				for(int i = 0; i + 1 < v.size(); i++){
					C[v[i + 1]][l - 1] += C[v[i]][l - 1];
				}
			}
			int n = j + 2; defa(n, m); pr(n, m);
			return true;
		}
	}
	return false;
}

int32_t main(){
	for(int i = 0; i <= 500; i++){
		C[i][0] = C[0][i] = 1;
	}
	for(int i = 1; i <= 500; i++){
		for(int j = 1; j <= 500; j++){
			C[i][j] = C[i - 1][j] + C[i][j - 1];
		}
	}
	int K; cin >> K;
	if(K <= 19){
		part1(K);
	}else{
		part2(K);
	}
}

Compilation message

costinland.cpp: In function 'bool part2(long long int)':
costinland.cpp:142:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  142 |     for(int i = 0; i + 1 < v.size(); i++){
      |                    ~~~~~~^~~~~~~~~~

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 4180 KB Correct! Your size: 5
2 Correct 3 ms 4180 KB Correct! Your size: 5
3 Correct 2 ms 4180 KB Correct! Your size: 5
4 Correct 2 ms 4180 KB Correct! Your size: 5
5 Correct 2 ms 4180 KB Correct! Your size: 5
6 Correct 2 ms 4180 KB Correct! Your size: 5
7 Correct 2 ms 4180 KB Correct! Your size: 5
8 Correct 2 ms 4180 KB Correct! Your size: 5
9 Correct 2 ms 4180 KB Correct! Your size: 5

Subtask #2
0.0 / 80.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 3 ms 4180 KB The matrix does not generate the required number of Costins
2 Halted 0 ms 0 KB -