oj.uz

Submission #612424

# Submission time Handle Problem Language Result Execution time Memory
612424 2022-07-29T14:43:16 Z yuto1115 Sorting (IOI15_sorting) C++17
74 / 100
 1000 ms 15908 KB 
#include "sorting.h"
#include <bits/stdc++.h>
#define rep(i, n) for(ll i = 0; i < ll(n); ++i)
#define rep2(i, s, n) for(ll i = ll(s); i < ll(n); ++i)
#define rrep(i, n) for(ll i = ll(n)-1; i >= 0; --i)
#define rrep2(i, n, t) for(ll i = ll(n)-1; i >= ll(t); --i)
#define pb push_back
#define eb emplace_back
#define all(a) a.begin(),a.end()
#define SZ(a) int(a.size())
using namespace std;
using ll = long long;
using P = pair<int, int>;
using vi = vector<int>;
using vvi = vector<vi>;
using vl = vector<ll>;
using vvl = vector<vl>;
using vp = vector<P>;
using vvp = vector<vp>;
using vb = vector<bool>;
using vvb = vector<vb>;
using vs = vector<string>;
const int inf = 1001001001;
const ll linf = 1001001001001001001;

template<class T>
bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

template<class T>
bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

int findSwapPairs(int n, int s[], int m, int x[], int y[], int p[], int q[]) {
    vi to(n);
    iota(all(to), 0);
    vi rev(n);
    iota(all(rev), 0);
    rep(i, m + 1) {
//        cerr << i << endl;
//        rep(j, n) cerr << to[j] << ' ' << rev[j] << endl;
        vvi ls;
        vb seen(n);
        rep(j, n) {
            if (seen[j]) continue;
            ls.pb({});
            int now = j;
            while (true) {
                seen[now] = true;
                ls.back().pb(now);
                int nx = s[rev[now]];
                if (seen[nx]) break;
                now = nx;
            }
        }
        if (n - SZ(ls) > i) {
            swap(to[rev[x[i]]], to[rev[y[i]]]);
            swap(rev[x[i]], rev[y[i]]);
            continue;
        }
        vp ev;
        for (const vi &v: ls) {
            rep2(j, 1, SZ(v)) ev.eb(v[0], v[j]);
        }
        rep(j, i) {
            swap(rev[to[x[j]]], rev[to[y[j]]]);
            swap(to[x[j]], to[y[j]]);
            if (j < SZ(ev)) {
                p[j] = rev[ev[j].first];
                q[j] = rev[ev[j].second];
            } else {
                p[j] = q[j] = 0;
            }
        }
        return i;
    }
    assert(false);
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:57:23: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   57 |             int now = j;
      |                       ^
sorting.cpp:85:16: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   85 |         return i;
      |                ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 296 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 296 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 296 KB Output is correct
19 Correct 1 ms 300 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 4 ms 468 KB Output is correct
22 Correct 3 ms 548 KB Output is correct
23 Correct 4 ms 560 KB Output is correct
24 Correct 8 ms 448 KB Output is correct
25 Correct 5 ms 568 KB Output is correct
26 Correct 7 ms 568 KB Output is correct
27 Correct 12 ms 580 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 448 KB Output is correct
2 Correct 36 ms 456 KB Output is correct
3 Correct 38 ms 444 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 20 ms 572 KB Output is correct
6 Correct 45 ms 572 KB Output is correct
7 Correct 103 ms 596 KB Output is correct
8 Correct 36 ms 468 KB Output is correct
9 Correct 44 ms 440 KB Output is correct
10 Correct 38 ms 460 KB Output is correct
11 Correct 90 ms 500 KB Output is correct
12 Correct 103 ms 596 KB Output is correct
13 Correct 177 ms 596 KB Output is correct
14 Correct 1 ms 596 KB Output is correct

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 448 KB Output is correct
2 Correct 36 ms 456 KB Output is correct
3 Correct 38 ms 444 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 20 ms 572 KB Output is correct
6 Correct 45 ms 572 KB Output is correct
7 Correct 103 ms 596 KB Output is correct
8 Correct 36 ms 468 KB Output is correct
9 Correct 44 ms 440 KB Output is correct
10 Correct 38 ms 460 KB Output is correct
11 Correct 90 ms 500 KB Output is correct
12 Correct 103 ms 596 KB Output is correct
13 Correct 177 ms 596 KB Output is correct
14 Correct 1 ms 596 KB Output is correct
15 Execution timed out 1041 ms 15908 KB Time limit exceeded
16 Halted 0 ms 0 KB -