제출 #433762

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
433762		SAAD	슈퍼트리 잇기 (IOI20_supertrees)	C++17	0 / 100	1 ms	332 KiB

supertrees

#include <iostream>
#include <math.h>
#include <algorithm>
#include <vector>
#include <string.h>
#include "supertrees.h"
using namespace std;
int tree[10002], n;
vector <int> te[1006];
int construct(vector<vector<int>> p) {
    n = (int)p.size();
    vector <int> s(n);
    vector<vector<int>> a;
    a = p;
    for (auto& i : a[0]) i = 0;
    memset(tree, -1, sizeof(tree));
    for (int i = 0; i < n; i++) {
        a[i] = a[0];
        if (tree[i] != -1) {
            p[i][i] = 2;
            p[i][tree[i]] = 1;
            if (p[i] != p[tree[i]]) return 0;
            p[i][i] = 1;
            p[i][tree[i]] = 2;
            continue;
        }
        for (int j = 0; j < n; j++) {
            if (p[i][j]) {
                tree[j] = i;
                te[i].push_back(j);
            }
        }
    }
    for (int i = 0; i < 1002; i++) {
        if (tree[i] == i && te[i].size() > 1 ) {
            for (int j = 0; j < te[i].size()-1;j++) {
                a[te[i][j]][te[i][j + 1]] = 1;
                a[te[i][j + 1]][te[i][j]] = 1;
            }
            a[te[i][0]][te[i][te[i].size()-1]] = 1;
            a[te[i][te[i].size() - 1]][te[i][0]] = 1;
        }
    }
    build(a);
    return 1;
}

컴파일 시 표준 에러 (stderr) 메시지

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:36:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |             for (int j = 0; j < te[i].size()-1;j++) {
      |                             ~~^~~~~~~~~~~~~~~~

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