oj.uz

Submission #349678

# Submission time Handle Problem Language Result Execution time Memory
349678 2021-01-18T07:14:49 Z rrrr10000 Sorting (IOI15_sorting) C++14
100 / 100
 504 ms 35560 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n)  for(long long i=0;i<(long long)(n);i++)
#define REP(i,k,n) for(long long i=k;i<(long long)(n);i++)
#define all(a) a.begin(),a.end()
#define rsort(a) {sort(all(a));reverse(all(a));}
#define pb emplace_back
#define eb emplace_back
#define lb(v,k) (lower_bound(all(v),(k))-v.begin())
#define ub(v,k) (upper_bound(all(v),(k))-v.begin())
#define fi first
#define se second
#define pi M_PI
#define PQ(T) priority_queue<T>
#define SPQ(T) priority_queue<T,vector<T>,greater<T>>
#define dame(a) {out(a);return 0;}
#define decimal cout<<fixed<<setprecision(15);
#define dupli(a) {sort(all(a));a.erase(unique(all(a)),a.end());}
typedef long long ll;
template<class T> void outv(T v){rep(i,v.size()){if(i)cout<<' ';cout<<v[i];}cout<<'\n';}
using vi=vector<ll>;
using vb=vector<bool>;
#include "sorting.h"
int findSwapPairs(int n,int s[],int m,int x[],int y[],int P[],int Q[]){
    int ok=m+1,ng=-1;
    rep(i,m)P[i]=Q[i]=0;
    while(ok-ng>1){
        ll md=(ok+ng)/2;
        vi v(n);
        rep(i,n)v[i]=s[i];
        rep(i,md)swap(v[x[i]],v[y[i]]);
        vb used(n,false);
        ll ans=n;
        rep(i,n)if(!used[i]){
            ans--;
            ll w=i;
            used[w]=true;
            while(!used[v[w]]){
                used[v[w]]=true;
                w=v[w];
            }
        }
        if(ans>md)ng=md;
        else ok=md;
    }
    vi v(n);
    rep(i,n)v[i]=s[i];
    rep(i,ok)swap(v[x[i]],v[y[i]]);
    vi target(n);rep(i,n)target[i]=i;
    vi rev(n);
    rep(i,n)rev[v[i]]=i;
    set<ll> yet;
    rep(i,n)if(v[i]!=target[i])yet.insert(v[i]);
    for(int i=ok-1;i>=0;i--){
        if(yet.size()){
            ll w=rev[*yet.begin()];
            if(v[w]==target[w]){
                yet.erase(yet.begin());
                i++;continue;
            }
            ll t=rev[target[w]];yet.erase(target[w]);
            P[i]=t;Q[i]=w;
            swap(target[t],target[w]);
        }
        swap(rev[v[x[i]]],rev[v[y[i]]]);
        swap(target[x[i]],target[y[i]]);swap(v[x[i]],v[y[i]]);
    }
    return ok;
}/*
int main(){
    int n;cin>>n;
    int s[10];rep(i,n)cin>>s[i];
    int m;cin>>m;
    int x[10],y[10];
    rep(i,m)cin>>x[i]>>y[i];
    int p[10],q[10];
    out(findSwapPairs(n,s,m,x,y,p,q));
    rep(i,m)outp(P(p[i],q[i]));
    rep(i,m){
        swap(s[x[i]],s[y[i]]);
        swap(s[p[i]],s[q[i]]);
    }
    rep(i,n)cout<<s[i]<<' ';cout<<endl;
}*/

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:43:22: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   43 |         if(ans>md)ng=md;
      |                      ^~
sorting.cpp:44:17: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   44 |         else ok=md;
      |                 ^~
sorting.cpp:62:18: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   62 |             P[i]=t;Q[i]=w;
      |                  ^
sorting.cpp:62:25: warning: conversion from 'll' {aka 'long long int'} to 'int' may change value [-Wconversion]
   62 |             P[i]=t;Q[i]=w;
      |                         ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 372 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 1 ms 364 KB Output is correct
7 Correct 1 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 1 ms 372 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 1 ms 364 KB Output is correct
7 Correct 1 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 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 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 1 ms 372 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 1 ms 364 KB Output is correct
7 Correct 1 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 1 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 748 KB Output is correct
24 Correct 2 ms 748 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 2 ms 620 KB Output is correct
2 Correct 3 ms 620 KB Output is correct
3 Correct 2 ms 620 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 620 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 2 ms 620 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 1 ms 492 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 620 KB Output is correct
2 Correct 3 ms 620 KB Output is correct
3 Correct 2 ms 620 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 1 ms 492 KB Output is correct
6 Correct 2 ms 492 KB Output is correct
7 Correct 2 ms 620 KB Output is correct
8 Correct 2 ms 620 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 2 ms 620 KB Output is correct
13 Correct 2 ms 620 KB Output is correct
14 Correct 1 ms 492 KB Output is correct
15 Correct 419 ms 31648 KB Output is correct
16 Correct 436 ms 32484 KB Output is correct
17 Correct 477 ms 34076 KB Output is correct
18 Correct 80 ms 22092 KB Output is correct
19 Correct 282 ms 30196 KB Output is correct
20 Correct 301 ms 31308 KB Output is correct
21 Correct 293 ms 31436 KB Output is correct
22 Correct 398 ms 29828 KB Output is correct
23 Correct 433 ms 35560 KB Output is correct
24 Correct 476 ms 34940 KB Output is correct
25 Correct 473 ms 34448 KB Output is correct
26 Correct 306 ms 30796 KB Output is correct
27 Correct 243 ms 29240 KB Output is correct
28 Correct 453 ms 35064 KB Output is correct
29 Correct 450 ms 34184 KB Output is correct
30 Correct 190 ms 28900 KB Output is correct
31 Correct 469 ms 35276 KB Output is correct
32 Correct 445 ms 34080 KB Output is correct
33 Correct 504 ms 34940 KB Output is correct
34 Correct 478 ms 34820 KB Output is correct
35 Correct 288 ms 29968 KB Output is correct
36 Correct 70 ms 23664 KB Output is correct
37 Correct 479 ms 35404 KB Output is correct
38 Correct 472 ms 34576 KB Output is correct
39 Correct 472 ms 33924 KB Output is correct