Submission #1085415

#	Time	Username	Problem	Language	Result	Execution time	Memory
1085415		guagua0407	Sorting (IOI15_sorting)	C++17	0 / 100	1 ms	604 KiB

sorting

#include "sorting.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

int n,m;
vector<int> p;
vector<int> x,y;
vector<pair<int,int>> vec;

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    if(N==1) return 0;
    n=N;
    m=M;
    p.resize(n);
    x.resize(m);
    y.resize(m);
    for(int i=0;i<n;i++){
        p[i]=S[i];
    }
    for(int i=0;i<m;i++){
        x[i]=X[i];
        y[i]=Y[i];
    }
    for(int i=0;i<m;i++){
        P[i]=0;
        Q[i]=0;
    }
    int cnt=0;
    for(int i=2;i<n;i++){
        if(p[i]==0){
            swap(p[0],p[1]);
            swap(p[0],p[i]);
            P[cnt]=0;
            Q[cnt]=i;
            cnt++;
            break;
        }
    }
    for(int i=2;i<n;i++){
        if(p[i]==1){
            swap(p[0],p[1]);
            if(p[0]!=0) swap(p[0],p[i]),P[cnt]=0;
            else swap(p[1],p[i]),P[cnt]=1;
            Q[cnt]=i;
            cnt++;
            break;
        }
    }
    for(int i=2;i<n;i++){
        for(int j=i+1;j<n;j++){
            if(S[j]==i){
                swap(p[0],p[1]);
                swap(S[i],S[j]);
                P[cnt]=i;
                Q[cnt]=j;
                cnt++;
                break;
            }
        }
    }
    return (p[0]==0?cnt:cnt+1);
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 12
• Subtask 3: 0 / 16
• Subtask 4: 0 / 18
• Subtask 5: 0 / 20
• Subtask 6: 0 / 26