oj.uz

답안 #300580

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
300580 2020-09-17T09:53:29 Z Dilshod_Imomov 슈퍼트리 잇기 (IOI20_supertrees) C++17
0 / 100
 1000 ms 33792 KB 
#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;
const int N = 1e3 + 7;
int nn, comp, used[N], cc[N], cmp[N], ok;
vector < int > adj[N];

void dfs( int v, int rt, vector < vector < int > > p ) {
    used[v] = 1;
    if ( !p[rt][v] ) {
        ok = 0;
        return;
    }
    for ( auto u: adj[v] ) {
        if ( !used[u] ) {
            dfs( u, rt, p );
            if ( !ok ) {
                return;
            }
        }
    }
}

int construct(std::vector<std::vector<int>> p) {
	nn = p.size();
	std::vector<std::vector<int>> answer;
	for (int i = 0; i < nn; i++) {
		std::vector<int> row;
		row.resize(nn);
		answer.push_back(row);
	}
	for ( int i = 0; i < nn; i++ ) {
        if ( !cc[i] ) {
            cc[i] = ++comp;
        }
        cmp[ cc[i] ] = i;
        for ( int j = 0; j < nn; j++ ) {
            if ( p[i][j] && i != j ) {
                if ( cc[j] && cc[j] != cc[i] ) {
                    return 0;
                }
                if(  cc[j] ) {
                    continue;
                }
                cc[j] = cc[i];
                answer[ cmp[ cc[i] ] ][j] = 1;
                answer[ j ][ cmp[ cc[i] ] ] = 1;
                cmp[ cc[i] ] = j;
            }
        }
	}
	for ( int i = 0; i < nn; i++ ) {
        for ( int j = 0; j < nn; j++ ) {
            if ( answer[i][j] ) {
                adj[i].push_back(j);
            }
        }
	}
	for ( int i = 0; i < nn; i++ ) {
        for ( int j = 0; j < nn; j++ ) {
            used[j] = 0;
        }
        ok = 1;
        dfs(i, i, p);
        if ( !ok ) {
            return 0;
        }
	}
	build(answer);
	return 1;
}

Subtask #1
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Execution timed out 1059 ms 33792 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Execution timed out 1059 ms 33792 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #3
0 / 19.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Incorrect 1 ms 384 KB Answer gives possible 1 while actual possible 0
5 Halted 0 ms 0 KB -

Subtask #4
0 / 35.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Incorrect 1 ms 384 KB Too few ways to get from 0 to 1, should be 2 found 1
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Execution timed out 1059 ms 33792 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #6
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 512 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Execution timed out 1059 ms 33792 KB Time limit exceeded
7 Halted 0 ms 0 KB -