oj.uz

Submission #387369

# Submission time Handle Problem Language Result Execution time Memory
387369 2021-04-08T10:02:54 Z mehrdad_sohrabi Sorting (IOI15_sorting) C++14
74 / 100
 328 ms 14828 KB 
/// Black lives matter
#include <bits/stdc++.h>
#include "sorting.h"
/// 500 485 462 A4
using namespace std;
typedef int ll;
typedef complex<double> point;
typedef long double ld;
#define pb push_back
#define pii pair < ll , ll >
#define F first
#define S second
//#define endl '\n'
//#define int long long
#define sync ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0)
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")
#define kill(x) return cout<<x<<'\n', 0;
const int N=6e5+100;
ll W[N];
ll koj[N];
ll ans1[N],ans2[N];
ll check(ll tool,int32_t n,int32_t s[],int32_t m,int32_t x[],int32_t y[]){
    for (int i=0;i<n;i++) W[i]=s[i];
    for (int i=0;i<tool;i++){
        swap(W[x[i]],W[y[i]]);
    }
    for (int i=0;i<n;i++){
        koj[W[i]]=i;
    }
    vector <pii> cng;
    for (int i=0;i<n;i++){
        if (koj[i]!=i){
            cng.pb({W[i],i});
          //  if (tool==3) cout <<  W[i] << " tool " << i << endl;
            swap(W[koj[i]],W[i]);
            ll z=koj[i];
            koj[i]=i;
            koj[W[z]]=z;
        }
    }
    for (int i=0;i<n;i++){
        W[i]=s[i];
    }
    for (int i=0;i<tool;i++){
        swap(W[x[i]],W[y[i]]);
    }
    for (int i=0;i<n;i++){
        koj[W[i]]=i;
    }
    /*
    if (tool==3){
        for (int i=0;i<n;i++){
            cout << W[i] << " W ";
        }
        cout << endl;
        for (int i=0;i<n;i++){
            cout << koj[i] << " koj ";
        }
        cout << endl;
    }
    */
 //   cout << cng.size() << " " << tool << endl;
    if (cng.size()>tool) return 0;
    reverse(cng.begin(),cng.end());
    for (int i=tool-1;i>-1;i--){
        ans1[i]=koj[cng.back().F];
        ans2[i]=koj[cng.back().S];
        pii p=cng.back();
        cng.pop_back();
        swap(W[x[i]],W[y[i]]);
        swap(koj[W[x[i]]],koj[W[y[i]]]);
        if (ans1[i]>ans2[i]) swap(ans1[i],ans2[i]);
        if (cng.size()==0) break;
    }
    return 1;
}
int32_t findSwapPairs(int32_t n, int32_t s[], int32_t m, int32_t x[], int32_t y[], int32_t p[], int32_t q[]) {
    /// yadet nare W=s koni
    ll p1=0;
    for (int i=1;i<n;i++) if (s[i]<s[i-1]) p1=1;
    if (p1==0) return 0;
    ll l=0,r=m;
    while(r-l>1){
      //  cout << l << " " << r << endl;
        ll mid=(r+l)/2;
        if (check(mid,n,s,m,x,y)) r=mid;
        else l=mid;
    }
    ll ans=r;
    check(r,n,s,m,x,y);
    for (int i=0;i<ans;i++){
        p[i]=ans1[i];
        q[i]=ans2[i];
    }
    return ans;
}
/*
int32_t s[N],x[N],y[N],p[N],q[N];
int32_t main(){
    ll n,m;
    cin >> n;
    for (int i=0;i<n;i++) cin >> s[i];
    cin >> m;
    for (int i=0;i<m;i++) cin >> x[i] >> y[i];
    ll ans=findSwapPairs(n,s,m,x,y,p,q);
    cout << ans << " ans " << endl;;
    for (int i=0;i<ans;i++){
        cout << ans1[i] << " " << ans2[i] << endl;
    }
}
*/
/*
5
4 3 2 1 0
6
0 1
1 2
2 3
3 4
0 1
1 2
5
3 0 4 2 1
5
1 1
4 0
2 3
1 4
0 4

*/

Compilation message

sorting.cpp: In function 'll check(ll, int32_t, int32_t*, int32_t, int32_t*, int32_t*)':
sorting.cpp:63:19: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'll' {aka 'int'} [-Wsign-compare]
   63 |     if (cng.size()>tool) return 0;
      |         ~~~~~~~~~~^~~~~
sorting.cpp:68:13: warning: variable 'p' set but not used [-Wunused-but-set-variable]
   68 |         pii p=cng.back();
      |             ^
sorting.cpp:22:48: warning: unused parameter 'm' [-Wunused-parameter]
   22 | ll check(ll tool,int32_t n,int32_t s[],int32_t m,int32_t x[],int32_t y[]){
      |                                        ~~~~~~~~^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 388 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 364 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 388 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 2 ms 388 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 2 ms 620 KB Output is correct
22 Correct 2 ms 620 KB Output is correct
23 Correct 2 ms 620 KB Output is correct
24 Correct 2 ms 620 KB Output is correct
25 Correct 2 ms 620 KB Output is correct
26 Correct 2 ms 620 KB Output is correct
27 Correct 2 ms 620 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 492 KB Output is correct
2 Correct 3 ms 620 KB Output is correct
3 Correct 3 ms 620 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 420 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 3 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 3 ms 620 KB Output is correct
11 Correct 3 ms 620 KB Output is correct
12 Correct 3 ms 620 KB Output is correct
13 Correct 3 ms 620 KB Output is correct
14 Correct 2 ms 492 KB Output is correct

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 492 KB Output is correct
2 Correct 3 ms 620 KB Output is correct
3 Correct 3 ms 620 KB Output is correct
4 Correct 2 ms 492 KB Output is correct
5 Correct 2 ms 420 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 3 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 3 ms 620 KB Output is correct
11 Correct 3 ms 620 KB Output is correct
12 Correct 3 ms 620 KB Output is correct
13 Correct 3 ms 620 KB Output is correct
14 Correct 2 ms 492 KB Output is correct
15 Correct 254 ms 13360 KB Output is correct
16 Correct 318 ms 12972 KB Output is correct
17 Correct 316 ms 14068 KB Output is correct
18 Correct 42 ms 5996 KB Output is correct
19 Correct 205 ms 13728 KB Output is correct
20 Correct 216 ms 13868 KB Output is correct
21 Correct 212 ms 13864 KB Output is correct
22 Correct 267 ms 13696 KB Output is correct
23 Correct 287 ms 13728 KB Output is correct
24 Correct 323 ms 13592 KB Output is correct
25 Correct 328 ms 13560 KB Output is correct
26 Correct 223 ms 11220 KB Output is correct
27 Correct 202 ms 10712 KB Output is correct
28 Correct 300 ms 13308 KB Output is correct
29 Correct 284 ms 13044 KB Output is correct
30 Correct 152 ms 9684 KB Output is correct
31 Correct 314 ms 13228 KB Output is correct
32 Correct 278 ms 13336 KB Output is correct
33 Correct 323 ms 13644 KB Output is correct
34 Correct 298 ms 13576 KB Output is correct
35 Correct 200 ms 13332 KB Output is correct
36 Runtime error 74 ms 14828 KB Execution killed with signal 11
37 Halted 0 ms 0 KB -