oj.uz

Submission #1075199

# Submission time Handle Problem Language Result Execution time Memory
1075199 2024-08-25T19:43:43 Z ArthuroWich Sorting (IOI15_sorting) C++17
0 / 100
 29 ms 600 KB 
#include "sorting.h"
#include<bits/stdc++.h>
using namespace std;
vector<pair<int, int>> ans, xy, swaps;
bool check(vector<int> p, int x, int n) {
    int s = 0;
    vector<int> co(n, 0);
    for (int i = 0; i < n; i++) {
        co[p[i]] = i;
    }
    for (int i = 0; i < x; i++) {
        swap(p[xy[i].first], p[xy[i].second]);
    }
    for (int i = 0; i < n; i++) {
        if (p[i] == i) {
            continue;
        }
        while(p[i] != i) {
            int j = p[i];
            swaps.push_back({co[i], co[j]});
            swap(p[i], p[j]);
            s++;
        }
    }
    return s <= x;
}
int findSwapPairs(int n, int A[], int M, int X[], int Y[], int P[], int Q[]) {
    vector<pair<int, int>> ans;
    vector<int> p(n);
    for (int i = 0; i < n; i++) {
        p[i] = A[i];
    }
    for (int i = 0; i < M; i++) {
        xy.push_back({X[i], Y[i]});
    }
    for (int i = 0; i <= M; i++) {
        swaps.clear();
        if (check(p, i, n)) {
            cout << i << endl;
            ans = swaps;
            break;
        }
    }
    for (int i = 0; i < ans.size(); i++) {
        P[i] = ans[i].first;
        Q[i] = ans[i].second;
    }
    return ans.size();
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:28:28: warning: declaration of 'ans' shadows a global declaration [-Wshadow]
   28 |     vector<pair<int, int>> ans;
      |                            ^~~
sorting.cpp:4:24: note: shadowed declaration is here
    4 | vector<pair<int, int>> ans, xy, swaps;
      |                        ^~~
sorting.cpp:44:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for (int i = 0; i < ans.size(); i++) {
      |                     ~~^~~~~~~~~~~~
sorting.cpp:48:20: warning: conversion from 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} to 'int' may change value [-Wconversion]
   48 |     return ans.size();
      |            ~~~~~~~~^~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Hacked
2 Halted 0 ms 0 KB -

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Hacked
2 Halted 0 ms 0 KB -

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Hacked
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Hacked
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 29 ms 600 KB Unexpected character #10, but ' ' expected
2 Halted 0 ms 0 KB -

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 29 ms 600 KB Unexpected character #10, but ' ' expected
2 Halted 0 ms 0 KB -