oj.uz

Submission #1039938

# Submission time Handle Problem Language Result Execution time Memory
1039938 2024-07-31T12:45:33 Z Zicrus Sorting (IOI15_sorting) C++17
54 / 100
 94 ms 756 KB 
#include <bits/stdc++.h>
#include "sorting.h"
using namespace std;

typedef long long ll;

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    ll res = 0;
    vector<ll> s(N);
    for (int i = 0; i < N; i++) s[i] = S[i];
    for (int i = 0; i < M; i++) {
        swap(s[X[i]], s[Y[i]]);
        vector<ll> order = s;
        for (int j = i+1; j < M; j++) {
            swap(order[X[j]], order[Y[j]]);
        }
        int firstOut = -1, id = -1;
        for (int j = 0; j < N; j++) {
            if (order[j] != j) {
                firstOut = order[id = j];
                break;
            }
        }
        if (firstOut == -1) {
            P[res] = Q[res] = 0;
            res++;
        }
        else {
            ll v = *find(order.begin(), order.end(), id);

            ll id1 = find(s.begin(), s.end(), firstOut) - s.begin();
            ll id2 = find(s.begin(), s.end(), v) - s.begin();
            swap(s[id1], s[id2]);
            P[res] = id1;
            Q[res] = id2;
            res++;
        }

        firstOut = -1;
        for (int j = 0; j < N; j++) {
            if (s[j] != j) {
                firstOut = s[j];
                break;
            }
        }
        if (firstOut == -1) return res;
    }

    P[res] = Q[res] = 0;
    res++;
	return res;
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:20:40: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
   20 |                 firstOut = order[id = j];
      |                                        ^
sorting.cpp:34:22: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   34 |             P[res] = id1;
      |                      ^~~
sorting.cpp:35:22: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   35 |             Q[res] = id2;
      |                      ^~~
sorting.cpp:42:31: warning: conversion from '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'} to 'int' may change value [-Wconversion]
   42 |                 firstOut = s[j];
      |                               ^
sorting.cpp:46:36: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   46 |         if (firstOut == -1) return res;
      |                                    ^~~
sorting.cpp:51:9: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   51 |  return res;
      |         ^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 448 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 604 KB Output is correct
21 Correct 82 ms 672 KB Output is correct
22 Correct 84 ms 604 KB Output is correct
23 Correct 93 ms 680 KB Output is correct
24 Correct 94 ms 680 KB Output is correct
25 Correct 88 ms 684 KB Output is correct
26 Correct 79 ms 756 KB Output is correct
27 Correct 83 ms 604 KB Output is correct

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 20 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 20 ms 344 KB Output isn't correct
2 Halted 0 ms 0 KB -