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Submission #1018963

# Submission time Handle Problem Language Result Execution time Memory
1018963 2024-07-10T11:21:13 Z amirhoseinfar1385 Sorting (IOI15_sorting) C++14
74 / 100
 1000 ms 29124 KB 
#include "sorting.h"
#include<bits/stdc++.h>
using namespace std;
const int maxn=1000000+10;
int all[maxn],n,q,fake[maxn],vis[maxn],lnk[maxn];
pair<int,int>alltagh[maxn];

void khor(){
	for(int i=0;i<n;i++){
		cout<<fake[i]<<" ";
	}
	cout<<endl;
	for(int i=0;i<n;i++){
		cout<<all[i]<<" ";
	}
	cout<<endl;
	for(int i=0;i<n;i++){
		cout<<lnk[i]<<endl;
	}
	cout<<endl;
	cout<<endl;
}

vector<vector<int>> besaz(int ind){
	vector<vector<int>>ret;
	for(int i=0;i<n;i++){
		fake[i]=all[i];
		vis[i]=0;
	}
	for(int i=1;i<=ind;i++){
		swap(fake[alltagh[i].first],fake[alltagh[i].second]);
	}
	for(int i=0;i<n;i++){
		if(vis[i]==0){
			ret.push_back({});
			int now=i;
			while(vis[now]==0){
//				cout<<now<<" "<<fake[now]<<endl;
				vis[now]=1;
				ret.back().push_back(fake[now]);
				now=fake[now];
			}
		}
	}
	return ret;
}

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    n=N;
    for(int i=0;i<n;i++){
    	all[i]=S[i];
    	lnk[all[i]]=i;
    }
    q=M;
    for(int i=1;i<=q;i++){
    	alltagh[i]=make_pair(X[i-1],Y[i-1]);
    }
    int low=-1,high=q,mid;
    /*while(high-low>1){
    	mid=(high+low)>>1;
    	vector<vector<int>>te=besaz(mid);
    	if(n-(int)te.size()<=mid){
    		high=mid;
    	}else{
    		low=mid;
    	}
    }*/
    for(int i=0;i<=q;i++){
    	if(n-besaz(i).size()<=i){
    		high=i;
    		break;
    	}
    }
   	vector<vector<int>>ger=besaz(high);
   	int now=0;
   	for(int i=0;i<(int)ger.size();i++){
   		//cout<<i<<" "<<(int)ger[i].size()<<endl;
   		//int tof=ger[i][0];
   		for(int j=1;j<(int)ger[i].size();j++){
   			P[now]=min(ger[i][j],ger[i][j-1]);
   			Q[now]=max(ger[i][j],ger[i][j-1]);
   		//	cout<<"chymige: "<<i<<" "<<j<<" "<<ger[i][j]<<" "<<ger[i][j-1]<<" "<<now<<" "<<P[0]<<" "<<Q[0]<<endl;
   			now++;
   		}
   	}
//   	if(now>q){
  // 		exit(0);
   	//}
   	for(int i=now;i<q;i++){
   		P[i]=Q[i]=0;
   	}
   	for(int i=1;i<=high;i++){
   		swap(lnk[all[alltagh[i].first]],lnk[all[alltagh[i].second]]);
   		swap(all[alltagh[i].first],all[alltagh[i].second]);
   		P[i-1]=lnk[P[i-1]];
   		Q[i-1]=lnk[Q[i-1]];
   		swap(lnk[all[P[i-1]]],lnk[all[Q[i-1]]]);
   		swap(all[P[i-1]],all[Q[i-1]]);
   	}
   	//for(int i=0;i<n;i++){
   	//	if(all[i]!=i){
   	//		exit(0);
   	//	}
   	//}
	return high;
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:69:26: warning: comparison of integer expressions of different signedness: 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   69 |      if(n-besaz(i).size()<=i){
      |         ~~~~~~~~~~~~~~~~~^~~
sorting.cpp:58:9: warning: unused variable 'low' [-Wunused-variable]
   58 |     int low=-1,high=q,mid;
      |         ^~~
sorting.cpp:58:23: warning: unused variable 'mid' [-Wunused-variable]
   58 |     int low=-1,high=q,mid;
      |                       ^~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 1 ms 8536 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 1 ms 8536 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 8536 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8724 KB Output is correct
11 Correct 1 ms 8540 KB Output is correct
12 Correct 1 ms 8540 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 1 ms 8672 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8792 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8540 KB Output is correct
2 Correct 1 ms 8540 KB Output is correct
3 Correct 1 ms 8540 KB Output is correct
4 Correct 1 ms 8536 KB Output is correct
5 Correct 1 ms 8540 KB Output is correct
6 Correct 1 ms 8540 KB Output is correct
7 Correct 1 ms 8540 KB Output is correct
8 Correct 1 ms 8536 KB Output is correct
9 Correct 1 ms 8540 KB Output is correct
10 Correct 1 ms 8724 KB Output is correct
11 Correct 1 ms 8540 KB Output is correct
12 Correct 1 ms 8540 KB Output is correct
13 Correct 1 ms 8540 KB Output is correct
14 Correct 1 ms 8540 KB Output is correct
15 Correct 1 ms 8540 KB Output is correct
16 Correct 1 ms 8672 KB Output is correct
17 Correct 1 ms 8540 KB Output is correct
18 Correct 1 ms 8792 KB Output is correct
19 Correct 1 ms 8540 KB Output is correct
20 Correct 1 ms 8540 KB Output is correct
21 Correct 3 ms 9052 KB Output is correct
22 Correct 3 ms 9052 KB Output is correct
23 Correct 3 ms 9092 KB Output is correct
24 Correct 5 ms 9048 KB Output is correct
25 Correct 4 ms 9052 KB Output is correct
26 Correct 7 ms 9032 KB Output is correct
27 Correct 7 ms 9052 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 8792 KB Output is correct
2 Correct 17 ms 8796 KB Output is correct
3 Correct 16 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 12 ms 8792 KB Output is correct
6 Correct 32 ms 8792 KB Output is correct
7 Correct 80 ms 8796 KB Output is correct
8 Correct 17 ms 8792 KB Output is correct
9 Correct 17 ms 8836 KB Output is correct
10 Correct 17 ms 8792 KB Output is correct
11 Correct 52 ms 8796 KB Output is correct
12 Correct 78 ms 8960 KB Output is correct
13 Correct 102 ms 8792 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 8792 KB Output is correct
2 Correct 17 ms 8796 KB Output is correct
3 Correct 16 ms 8796 KB Output is correct
4 Correct 1 ms 8796 KB Output is correct
5 Correct 12 ms 8792 KB Output is correct
6 Correct 32 ms 8792 KB Output is correct
7 Correct 80 ms 8796 KB Output is correct
8 Correct 17 ms 8792 KB Output is correct
9 Correct 17 ms 8836 KB Output is correct
10 Correct 17 ms 8792 KB Output is correct
11 Correct 52 ms 8796 KB Output is correct
12 Correct 78 ms 8960 KB Output is correct
13 Correct 102 ms 8792 KB Output is correct
14 Correct 2 ms 8796 KB Output is correct
15 Execution timed out 1052 ms 29124 KB Time limit exceeded
16 Halted 0 ms 0 KB -