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Submission #1011668

# Submission time Handle Problem Language Result Execution time Memory
1011668 2024-07-01T04:11:59 Z hotboy2703 Sorting (IOI15_sorting) C++17
100 / 100
 148 ms 23172 KB 
#include "sorting.h"
#include<bits/stdc++.h>
using namespace std;
using ll = int;
#define pll pair <ll,ll>
#define fi first
#define se second
#define MP make_pair
#define sz(a) (ll((a).size()))
#define BIT(mask,i) (((mask) >> (i))&1)
#define MASK(i) (1LL << (i))
const ll MAXN = 2e5+100;
ll p[MAXN];
ll pos[MAXN];
void sw(ll x,ll y){
    swap(p[x],p[y]);
    swap(pos[p[x]],pos[p[y]]);
}
int findSwapPairs(int n, int S[], int m, int X[], int Y[], int P[], int Q[]) {
    ll l = 0;
    ll r = n - 1;
    vector <pll> ans;
    while (l <= r){
        ll mid = (l + r) >> 1;
        for (ll i = 0;i < n;i ++){
            p[i] = S[i];
            pos[p[i]] = i;
        }
        for (ll i = 0;i < mid;i ++){
            sw(X[i],Y[i]);
        }
        vector <pll> val;
        for (ll i = 0;i < n;i ++){
            if (p[i] != i){
                val.push_back(MP(i,p[i]));
                sw(i,pos[i]);
            }
        }
        if (sz(val) > mid){
            l = mid + 1;
        }
        else {
            while (sz(val) < mid)val.push_back(MP(0,0));
            for (ll i = mid - 1;i >= 0;i --){
                sw(pos[val[i].fi],pos[val[i].se]);
                val[i] = MP(pos[val[i].fi],pos[val[i].se]);
                sw(X[i],Y[i]);
            }
            ans = val;
            r = mid - 1;
        }
    }
    for (ll i =0 ;i < sz(ans);i ++){
        tie(P[i],Q[i]) = ans[i];
    }
	return sz(ans);
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:19:39: warning: unused parameter 'm' [-Wunused-parameter]
   19 | int findSwapPairs(int n, int S[], int m, int X[], int Y[], int P[], int Q[]) {
      |                                   ~~~~^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 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 0 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 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 440 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 0 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 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 440 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 604 KB Output is correct
23 Correct 1 ms 600 KB Output is correct
24 Correct 1 ms 680 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 600 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 1 ms 524 KB Output is correct
3 Correct 1 ms 496 KB Output is correct
4 Correct 1 ms 520 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 452 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 600 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 600 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 604 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 604 KB Output is correct
2 Correct 1 ms 524 KB Output is correct
3 Correct 1 ms 496 KB Output is correct
4 Correct 1 ms 520 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 1 ms 452 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 600 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 600 KB Output is correct
13 Correct 1 ms 600 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 110 ms 19596 KB Output is correct
16 Correct 111 ms 19864 KB Output is correct
17 Correct 122 ms 21068 KB Output is correct
18 Correct 55 ms 16372 KB Output is correct
19 Correct 103 ms 18464 KB Output is correct
20 Correct 103 ms 22096 KB Output is correct
21 Correct 106 ms 20436 KB Output is correct
22 Correct 115 ms 16424 KB Output is correct
23 Correct 108 ms 23172 KB Output is correct
24 Correct 128 ms 22904 KB Output is correct
25 Correct 148 ms 21148 KB Output is correct
26 Correct 88 ms 20220 KB Output is correct
27 Correct 110 ms 18664 KB Output is correct
28 Correct 134 ms 22756 KB Output is correct
29 Correct 120 ms 20536 KB Output is correct
30 Correct 84 ms 20280 KB Output is correct
31 Correct 135 ms 21072 KB Output is correct
32 Correct 111 ms 21048 KB Output is correct
33 Correct 135 ms 22852 KB Output is correct
34 Correct 122 ms 21516 KB Output is correct
35 Correct 87 ms 18204 KB Output is correct
36 Correct 44 ms 17712 KB Output is correct
37 Correct 118 ms 22092 KB Output is correct
38 Correct 112 ms 20528 KB Output is correct
39 Correct 119 ms 22696 KB Output is correct