oj.uz

Submission #68696

# Submission time Handle Problem Language Result Execution time Memory
68696 2018-08-18T07:51:33 Z MANcity Sorting (IOI15_sorting) C++14
100 / 100
 311 ms 13308 KB 
#include<iostream>
#include<cstdio>
#include<fstream>
#include<algorithm>
#include<cmath>
#include<map>
#include<queue>
#include<set>
#include<stack>
#include<string>
#include<cstring>
#include<vector>
#include "sorting.h"
using namespace std;
#define for1(i,n) for(int i=1;i<=(int)n;i++)
#define for0(i,n) for(int i=0;i<=(int)n;i++)
#define forn(i,n) for(int i=n;i>=1;i--)
#define fo(i,x,y) for(int i=x;i<=(int)y;i++)
#define fr(i,x,y) for(int i=x;i>=(int)y;i--)
#define pb push_back
#define mp make_pair
#define LL long long
const LL Mod=1000*1000*1000+7;
int t[200002];
int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    int u=0;
    for0(i,N-1)
        if(S[i]!=i)
            u=1;
    if(u==0)
        return 0;
    int l=0;
    int r=(M-1);
    while(1)
    {
        if(l==r)
        {
            pair<int,int> NS[200002];
            int pos[200002];
            for0(i,N-1)
                NS[i]=mp(S[i],i);

            for0(i,l)
            {
                pair<int,int> t=NS[Y[i]];
                NS[Y[i]]=NS[X[i]];
                NS[X[i]]=t;
            }
            for0(i,N-1)
                pos[NS[i].first]=i;
            vector<pair<int,int> > ans;
            for0(i,N-1)
            {
                if(NS[i].first!=i)
                {
                    int t=pos[i];
                    ans.push_back({NS[i].first,NS[t].first});
                    pos[NS[i].first]=t;
                    pos[i]=i;
                    pair<int,int> c=NS[t];
                    NS[t]=NS[i];
                    NS[i]=c;
                }
            }
            int H[200002];
            pos[200002];
            for0(i,N-1)
                H[i]=S[i];
            for0(i,N-1)
                pos[H[i]]=i;
            for0(i,l)
            {
                pos[H[X[i]]]=Y[i];
                pos[H[Y[i]]]=X[i];
                int t=H[Y[i]];
                H[Y[i]]=H[X[i]];
                H[X[i]]=t;
                P[i]=pos[ans[i].first];
                Q[i]=pos[ans[i].second];
                pos[H[P[i]]]=Q[i];
                pos[H[Q[i]]]=P[i];
                t=H[Q[i]];
                H[Q[i]]=H[P[i]];
                H[P[i]]=t;
            }
            return (l+1);
        }
        int m=(l+r)/2;
        int NS[200002];
        int pos[200002];
        for0(i,N-1)
            NS[i]=S[i];
        for0(i,m)
        {
            int p=NS[Y[i]];
            NS[Y[i]]=NS[X[i]];
            NS[X[i]]=p;
        }
        for0(i,N-1)
            pos[NS[i]]=i;
        int q=0;
        for0(i,N-1)
        {
            if(NS[i]!=i)
            {
                q++;
                pos[NS[i]]=pos[i];
                NS[pos[i]]=NS[i];
                NS[i]=i;
                pos[i]=i;
            }
        }
        if(q>(m+1))
            l=(m+1);
        else
            r=m;
    }
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:45:31: warning: declaration of 't' shadows a global declaration [-Wshadow]
                 pair<int,int> t=NS[Y[i]];
                               ^
sorting.cpp:24:5: note: shadowed declaration is here
 int t[200002];
     ^
sorting.cpp:56:25: warning: declaration of 't' shadows a global declaration [-Wshadow]
                     int t=pos[i];
                         ^
sorting.cpp:24:5: note: shadowed declaration is here
 int t[200002];
     ^
sorting.cpp:66:23: warning: statement has no effect [-Wunused-value]
             pos[200002];
             ~~~~~~~~~~^
sorting.cpp:75:21: warning: declaration of 't' shadows a global declaration [-Wshadow]
                 int t=H[Y[i]];
                     ^
sorting.cpp:24:5: note: shadowed declaration is here
 int t[200002];
     ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 432 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 3 ms 1920 KB Output is correct
4 Correct 4 ms 1892 KB Output is correct
5 Correct 4 ms 1920 KB Output is correct
6 Correct 4 ms 1920 KB Output is correct
7 Correct 4 ms 1920 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 432 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 3 ms 1920 KB Output is correct
4 Correct 4 ms 1892 KB Output is correct
5 Correct 4 ms 1920 KB Output is correct
6 Correct 4 ms 1920 KB Output is correct
7 Correct 4 ms 1920 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 4 ms 1920 KB Output is correct
11 Correct 4 ms 1920 KB Output is correct
12 Correct 4 ms 1920 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 3 ms 1920 KB Output is correct
3 Correct 3 ms 1920 KB Output is correct
4 Correct 5 ms 1920 KB Output is correct
5 Correct 4 ms 1920 KB Output is correct
6 Correct 4 ms 1920 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 432 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 3 ms 1920 KB Output is correct
4 Correct 4 ms 1892 KB Output is correct
5 Correct 4 ms 1920 KB Output is correct
6 Correct 4 ms 1920 KB Output is correct
7 Correct 4 ms 1920 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 4 ms 1920 KB Output is correct
11 Correct 4 ms 1920 KB Output is correct
12 Correct 4 ms 1920 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 1920 KB Output is correct
15 Correct 3 ms 1920 KB Output is correct
16 Correct 5 ms 1920 KB Output is correct
17 Correct 4 ms 1920 KB Output is correct
18 Correct 4 ms 1920 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 5 ms 2048 KB Output is correct
22 Correct 4 ms 2020 KB Output is correct
23 Correct 6 ms 2048 KB Output is correct
24 Correct 4 ms 2048 KB Output is correct
25 Correct 4 ms 2048 KB Output is correct
26 Correct 4 ms 2048 KB Output is correct
27 Correct 5 ms 2048 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2048 KB Output is correct
2 Correct 5 ms 2048 KB Output is correct
3 Correct 5 ms 2048 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 5 ms 2048 KB Output is correct
6 Correct 4 ms 2048 KB Output is correct
7 Correct 4 ms 2048 KB Output is correct
8 Correct 4 ms 2048 KB Output is correct
9 Correct 5 ms 2048 KB Output is correct
10 Correct 5 ms 2048 KB Output is correct
11 Correct 5 ms 2048 KB Output is correct
12 Correct 4 ms 2048 KB Output is correct
13 Correct 5 ms 2048 KB Output is correct
14 Correct 4 ms 2048 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2048 KB Output is correct
2 Correct 5 ms 2048 KB Output is correct
3 Correct 5 ms 2048 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 5 ms 2048 KB Output is correct
6 Correct 4 ms 2048 KB Output is correct
7 Correct 4 ms 2048 KB Output is correct
8 Correct 4 ms 2048 KB Output is correct
9 Correct 5 ms 2048 KB Output is correct
10 Correct 5 ms 2048 KB Output is correct
11 Correct 5 ms 2048 KB Output is correct
12 Correct 4 ms 2048 KB Output is correct
13 Correct 5 ms 2048 KB Output is correct
14 Correct 4 ms 2048 KB Output is correct
15 Correct 233 ms 11868 KB Output is correct
16 Correct 220 ms 12164 KB Output is correct
17 Correct 246 ms 12688 KB Output is correct
18 Correct 35 ms 5368 KB Output is correct
19 Correct 182 ms 10828 KB Output is correct
20 Correct 176 ms 11292 KB Output is correct
21 Correct 219 ms 11204 KB Output is correct
22 Correct 252 ms 12844 KB Output is correct
23 Correct 275 ms 13308 KB Output is correct
24 Correct 311 ms 12908 KB Output is correct
25 Correct 308 ms 12804 KB Output is correct
26 Correct 223 ms 11140 KB Output is correct
27 Correct 201 ms 10708 KB Output is correct
28 Correct 271 ms 12752 KB Output is correct
29 Correct 239 ms 12240 KB Output is correct
30 Correct 136 ms 9972 KB Output is correct
31 Correct 251 ms 12572 KB Output is correct
32 Correct 246 ms 12684 KB Output is correct
33 Correct 262 ms 12992 KB Output is correct
34 Correct 224 ms 12864 KB Output is correct
35 Correct 197 ms 10880 KB Output is correct
36 Correct 53 ms 8952 KB Output is correct
37 Correct 307 ms 13252 KB Output is correct
38 Correct 278 ms 12684 KB Output is correct
39 Correct 293 ms 12920 KB Output is correct