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Submission #16645

# Submission time Handle Problem Language Result Execution time Memory
16645 2015-09-02T11:47:19 Z khsoo01 Sorting (IOI15_sorting) C++
74 / 100
 57 ms 19688 KB 
#include<bits/stdc++.h>
#include "sorting.h"
using namespace std;
int n,m,cur[200005],def[200005],x[200005],y[200005];
int p[200005],q[200005],where[200005],cnt,ans;

void Swap(int A,int B) {
    int tmp;
    tmp=where[cur[A]];
    where[cur[A]]=where[cur[B]];
    where[cur[B]]=tmp;
    tmp=cur[A];
    cur[A]=cur[B];
    cur[B]=tmp;
}

int param(int s,int e) {
    int piv=(s+e)/2,i;
    for(i=0;i<n;i++) {
        cur[i]=def[i];
        where[cur[i]]=i;
    }
    for(i=0;i<piv;i++) {
        Swap(x[i],y[i]);
    }
    cnt=0;
    for(i=0;i<n;i++) {
        while(cur[i]!=i) {
            p[cnt]=cur[i];
            q[cnt]=cur[cur[i]];
            Swap(i,cur[i]);
            cnt++;
        }
    }
    if(s==e)return s;
    if(cnt<=piv) return param(s,piv);
    return param(piv+1,e);
}

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    int i; n=N; m=M;
    for(i=0;i<n;i++) def[i]=S[i];
    for(i=0;i<m;i++) {
        x[i]=X[i];
        y[i]=Y[i];
    }
    ans=param(0,m);
    for(i=0;i<n;i++) {
        cur[i]=def[i];
        where[cur[i]]=i;
    }
    for(i=0;i<cnt;i++) {
        Swap(x[i],y[i]);
        P[i]=where[p[i]]; Q[i]=where[q[i]];
        Swap(where[p[i]],where[q[i]]);
    }
    for(i=cnt;i<ans;i++) {P[i]=0;Q[i]=0;}
    return ans;
}

Subtask #1
8.0 / 8.0

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

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 300 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 484 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 3 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 3 ms 384 KB Output is correct
9 Correct 3 ms 332 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 2 ms 384 KB Output is correct
13 Correct 3 ms 300 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 2 ms 384 KB Output is correct
16 Correct 2 ms 484 KB Output is correct
17 Correct 2 ms 384 KB Output is correct
18 Correct 2 ms 384 KB Output is correct
19 Correct 2 ms 384 KB Output is correct
20 Correct 2 ms 384 KB Output is correct
21 Correct 3 ms 512 KB Output is correct
22 Correct 2 ms 640 KB Output is correct
23 Correct 4 ms 640 KB Output is correct
24 Correct 4 ms 640 KB Output is correct
25 Correct 3 ms 640 KB Output is correct
26 Correct 3 ms 640 KB Output is correct
27 Correct 4 ms 640 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 4 ms 512 KB Output is correct
4 Correct 3 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 3 ms 512 KB Output is correct
7 Correct 3 ms 512 KB Output is correct
8 Correct 5 ms 512 KB Output is correct
9 Correct 4 ms 512 KB Output is correct
10 Correct 3 ms 512 KB Output is correct
11 Correct 3 ms 512 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 3 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 512 KB Output is correct
2 Correct 4 ms 512 KB Output is correct
3 Correct 4 ms 512 KB Output is correct
4 Correct 3 ms 512 KB Output is correct
5 Correct 3 ms 512 KB Output is correct
6 Correct 3 ms 512 KB Output is correct
7 Correct 3 ms 512 KB Output is correct
8 Correct 5 ms 512 KB Output is correct
9 Correct 4 ms 512 KB Output is correct
10 Correct 3 ms 512 KB Output is correct
11 Correct 3 ms 512 KB Output is correct
12 Correct 2 ms 512 KB Output is correct
13 Correct 3 ms 512 KB Output is correct
14 Correct 2 ms 512 KB Output is correct
15 Runtime error 57 ms 19688 KB Execution killed with signal 11 (could be triggered by violating memory limits)
16 Halted 0 ms 0 KB -