답안 #1060402

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1060402	2024-08-15T13:52:47 Z	steveonalex	정렬하기 (IOI15_sorting)	C++17	100 / 100	114 ms	14960 KB

sorting

#include <bits/stdc++.h>
#include "sorting.h"
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
#define block_of_code if(true)
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll gcd(ll a, ll b){return __gcd(a, b);}
ll lcm(ll a, ll b){return a / gcd(a, b) * b;}
 
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
 
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
 
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }
 
template <class T>
    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }



int findSwapPairs(int n, int a[], int m, int x[], int y[], int p[], int q[]) {
    minimize(m, n);

    int L = 0, R = m;
    while(L < R){
        int mid = (L + R) >> 1;
        vector<int> perm(n);
        for(int i = 0; i < n; ++i) perm[i] = a[i];
        for(int i = 0; i < mid; ++i){
            swap(perm[x[i]], perm[y[i]]);
        }

        vector<bool> visited(n);
        int cnt = 0;
        for(int i = 0; i<n; ++i) if (!visited[i]) {
            int u = i;
            while(!visited[u]){
                visited[u] = true;
                if (!visited[perm[u]]) cnt++;
                u = perm[u];
            }
        }

        if (cnt <= mid) R = mid;
        else L = mid + 1;
    }

    vector<int> perm(n);
    for(int i = 0; i < n; ++i) perm[i] = a[i];
    for(int i = 0; i < R; ++i) swap(perm[x[i]], perm[y[i]]);

    vector<bool> visited(n);
    vector<pair<int,int>> swaps;
    for(int i = 0; i<n; ++i) if (!visited[i]) {
        int u = i;
        while(!visited[u]){
            visited[u] = true;
            if (!visited[perm[u]]) swaps.push_back({u, perm[u]});
            u = perm[u];
        }
    }

    reverse(ALL(swaps));
    vector<int> pos(n);
    for(int i = 0; i<n; ++i) perm[i] = a[i];
    for(int i = 0; i<n; ++i) pos[perm[i]] = i;
    for(int i = 0; i < R; ++i){
        int u = x[i], v = y[i];
        swap(perm[u], perm[v]);
        swap(pos[perm[u]], pos[perm[v]]);
        if (swaps.size()){
            u = pos[swaps.back().first], v = pos[swaps.back().second];
            swaps.pop_back();
        }
        else u = v = 0;
        swap(perm[u], perm[v]);
        swap(pos[perm[u]], pos[perm[v]]);

        p[i] = u, q[i] = v;
    }

    return R;
}

// int main(void){
//     ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

//     clock_t start = clock();

//     int n; cin >> n;
//     int a[n];
//     for(int i = 0; i<n; ++i) cin >> a[i];

//     int m; cin >> m;
//     int x[m], y[m];
//     for(int i = 0; i<m; ++i) cin >> x[i] >> y[i];

//     int p[m], q[m];
//     memset(p, -1, sizeof p); memset(q, -1, sizeof q);

//     int r = findSwapPairs(n, a, m, x, y, p, q);
//     cout << r << "\n";
//     for(int i = 0; i < r; ++i) {
//         swap(a[x[i]], a[y[i]]);
//         swap(a[p[i]], a[q[i]]);
//         cout << p[i] << " " << q[i] << "\n"; 
//     }

//     for(int i = 0; i < n; ++i) cout << a[i] << " "; cout << "\n";

//     cerr << "Time elapsed: " << clock() - start << " ms\n";

//     return 0;
// }

/*
5
4 3 2 1 0
6
0 1
1 2
2 3
3 4
0 1
1 2

*/

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	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

#	결과	실행 시간	메모리	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	344 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

#	결과	메모리	Grader output
1	Correct	344 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct
5	Correct	344 KB	Output is correct
6	Correct	348 KB	Output is correct

Subtask #4
18.0 / 18.0

#	결과	실행 시간	메모리	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	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	344 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	1 ms	604 KB	Output is correct
22	Correct	1 ms	564 KB	Output is correct
23	Correct	1 ms	604 KB	Output is correct
24	Correct	1 ms	568 KB	Output is correct
25	Correct	1 ms	604 KB	Output is correct
26	Correct	1 ms	604 KB	Output is correct
27	Correct	1 ms	448 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	856 KB	Output is correct
2	Correct	1 ms	604 KB	Output is correct
3	Correct	2 ms	604 KB	Output is correct
4	Correct	1 ms	344 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	604 KB	Output is correct
8	Correct	1 ms	604 KB	Output is correct
9	Correct	1 ms	604 KB	Output is correct
10	Correct	1 ms	604 KB	Output is correct
11	Correct	1 ms	604 KB	Output is correct
12	Correct	1 ms	604 KB	Output is correct
13	Correct	1 ms	412 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct

Subtask #6
26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	856 KB	Output is correct
2	Correct	1 ms	604 KB	Output is correct
3	Correct	2 ms	604 KB	Output is correct
4	Correct	1 ms	344 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	604 KB	Output is correct
8	Correct	1 ms	604 KB	Output is correct
9	Correct	1 ms	604 KB	Output is correct
10	Correct	1 ms	604 KB	Output is correct
11	Correct	1 ms	604 KB	Output is correct
12	Correct	1 ms	604 KB	Output is correct
13	Correct	1 ms	412 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	97 ms	14644 KB	Output is correct
16	Correct	102 ms	14960 KB	Output is correct
17	Correct	106 ms	11320 KB	Output is correct
18	Correct	45 ms	6848 KB	Output is correct
19	Correct	93 ms	9364 KB	Output is correct
20	Correct	97 ms	9524 KB	Output is correct
21	Correct	101 ms	10004 KB	Output is correct
22	Correct	88 ms	11412 KB	Output is correct
23	Correct	104 ms	11584 KB	Output is correct
24	Correct	114 ms	11364 KB	Output is correct
25	Correct	108 ms	11364 KB	Output is correct
26	Correct	93 ms	9772 KB	Output is correct
27	Correct	90 ms	9564 KB	Output is correct
28	Correct	111 ms	11288 KB	Output is correct
29	Correct	105 ms	10824 KB	Output is correct
30	Correct	74 ms	8524 KB	Output is correct
31	Correct	105 ms	12572 KB	Output is correct
32	Correct	102 ms	11148 KB	Output is correct
33	Correct	110 ms	11368 KB	Output is correct
34	Correct	106 ms	12652 KB	Output is correct
35	Correct	90 ms	9584 KB	Output is correct
36	Correct	39 ms	7240 KB	Output is correct
37	Correct	113 ms	11296 KB	Output is correct
38	Correct	110 ms	11128 KB	Output is correct
39	Correct	111 ms	12144 KB	Output is correct

답안 #1060402

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 12.0 / 12.0

Subtask #3 16.0 / 16.0

Subtask #4 18.0 / 18.0

Subtask #5 20.0 / 20.0

Subtask #6 26.0 / 26.0

Subtask #1
8.0 / 8.0

Subtask #2
12.0 / 12.0

Subtask #3
16.0 / 16.0

Subtask #4
18.0 / 18.0

Subtask #5
20.0 / 20.0

Subtask #6
26.0 / 26.0