oj.uz

Submission #140563

# Submission time Handle Problem Language Result Execution time Memory
140563 2019-08-03T14:10:31 Z SirCeness Sorting (IOI15_sorting) C++14
100 / 100
 355 ms 22328 KB 
#include "sorting.h"
#include <bits/stdc++.h>

#define pb push_back
#define mp make_pair
#define inside sl<=l&&r<=sr
#define outside r<sl||sr<l
#define orta ((l+r)>>1)
#define INF 1000000009
#define mod 1000000007
#define ppair(x) "(" << x.first << ", " << x.second << ") "
#define bas(x) #x << ": " << x << " "
#define prarr(x, n); cerr << #x << ": "; for(int qsd = 0; qsd < n; qsd++) cerr << x[qsd] << " "; cerr << "\n";
#define prarrv(x); cerr << #x << ": "; for(int qsd = 0; qsd < (int)x.size(); qsd++) cerr << x[qsd] << " "; cerr << "\n";
using namespace std;
typedef long long ll;

int n, m;

int dene(int N, int S[], int M, int X[], int Y[], int P[], int Q[]){
	n = N; m = M;
	vector<int> sanal;
	for (int i = 0; i < n; i++) sanal.pb(S[i]);
	for (int i = 0; i < m; i++) swap(sanal[X[i]], sanal[Y[i]]);
	
	vector<int> sim;
	for (int i = 0; i < n; i++) sim.pb(S[i]);
	
	//prarrv(sanal);
	
	vector<int> yer(n);
	for (int i = 0; i < n; i++) yer[sanal[i]] = i;
	
	vector<pair<int, int> > deg;
	for (int i = 0; i < n; i++){
		if (sanal[i] != i){
			int j = yer[i];
			yer[sanal[i]] = j;
			deg.pb(mp(sanal[i], sanal[j]));
			swap(sanal[i], sanal[j]);
		}
	}
	
	//for (int i = 0; i < deg.size(); i++) cout << ppair(deg[i]) << " "; cout << endl;
	
	int r = deg.size();
	if (r > m) return 0; 
	return 1;
}

void yap(int N, int S[], int M, int X[], int Y[], int P[], int Q[]){
	n = N; m = M;
	vector<int> sanal;
	for (int i = 0; i < n; i++) sanal.pb(S[i]);
	for (int i = 0; i < m; i++) swap(sanal[X[i]], sanal[Y[i]]);
	
	vector<int> sim;
	for (int i = 0; i < n; i++) sim.pb(S[i]);
	
	//prarrv(sanal);
	vector<int> yer(n);
	for (int i = 0; i < n; i++) yer[sanal[i]] = i;
	
	vector<pair<int, int> > deg;
	for (int i = 0; i < n; i++){
		if (sanal[i] != i){
			int j = yer[i];
			yer[sanal[i]] = j;
			deg.pb(mp(sanal[i], sanal[j]));
			swap(sanal[i], sanal[j]);
		}
	}
	
	//for (int i = 0; i < deg.size(); i++) cout << ppair(deg[i]) << " "; cout << endl;
	
	int r = deg.size();
	//if (r > m) return 0;
	
	for (int i = 0; i < n; i++) yer[S[i]] = i;
	
	for (int i = 0; i < M; i++){
		yer[S[X[i]]] = Y[i];
		yer[S[Y[i]]] = X[i];
		swap(S[X[i]], S[Y[i]]);
		if (i >= r){
			P[i] = 0;
			Q[i] = 0;
			continue;
		}
		P[i] = yer[deg[i].first];
		Q[i] = yer[deg[i].second];
		
		yer[S[P[i]]] = Q[i];
		yer[S[Q[i]]] = P[i];
		swap(S[P[i]], S[Q[i]]);
	}
	
	/*prarrv(sim);
	for (int i = 0; i < m; i++){
		swap(sim[X[i]], sim[Y[i]]);
		prarrv(sim);
		swap(sim[P[i]], sim[Q[i]]);
		prarrv(sim);
	}*/
	
	//return 1;
}

int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
	int l = 0;
	int r = M;
	while (l < r){
		int mid = (l+r)/2;
		if (dene(N, S, mid, X, Y, P, Q)) r = mid;
		else l = mid+1;
	}
	yap(N, S, l, X, Y, P, Q);
	return l;
}

Compilation message

sorting.cpp: In function 'int dene(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:46:18: warning: conversion to 'int' from 'std::vector<std::pair<int, int> >::size_type {aka long unsigned int}' may alter its value [-Wconversion]
  int r = deg.size();
          ~~~~~~~~^~
sorting.cpp:20:57: warning: unused parameter 'P' [-Wunused-parameter]
 int dene(int N, int S[], int M, int X[], int Y[], int P[], int Q[]){
                                                         ^
sorting.cpp:20:66: warning: unused parameter 'Q' [-Wunused-parameter]
 int dene(int N, int S[], int M, int X[], int Y[], int P[], int Q[]){
                                                                  ^
sorting.cpp: In function 'void yap(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:76:18: warning: conversion to 'int' from 'std::vector<std::pair<int, int> >::size_type {aka long unsigned int}' may alter its value [-Wconversion]
  int r = deg.size();
          ~~~~~~~~^~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 252 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 256 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 256 KB Output is correct
14 Correct 2 ms 252 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 256 KB Output is correct
19 Correct 2 ms 256 KB Output is correct
20 Correct 2 ms 256 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 3 ms 380 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 504 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 3 ms 508 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 3 ms 504 KB Output is correct
10 Correct 3 ms 504 KB Output is correct
11 Correct 3 ms 504 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 504 KB Output is correct
14 Correct 3 ms 376 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 504 KB Output is correct
2 Correct 3 ms 504 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 3 ms 508 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 504 KB Output is correct
9 Correct 3 ms 504 KB Output is correct
10 Correct 3 ms 504 KB Output is correct
11 Correct 3 ms 504 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 504 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 285 ms 12108 KB Output is correct
16 Correct 300 ms 20336 KB Output is correct
17 Correct 335 ms 21364 KB Output is correct
18 Correct 119 ms 18708 KB Output is correct
19 Correct 255 ms 19904 KB Output is correct
20 Correct 268 ms 20196 KB Output is correct
21 Correct 276 ms 20320 KB Output is correct
22 Correct 294 ms 16432 KB Output is correct
23 Correct 329 ms 22108 KB Output is correct
24 Correct 355 ms 21736 KB Output is correct
25 Correct 345 ms 21584 KB Output is correct
26 Correct 256 ms 19852 KB Output is correct
27 Correct 236 ms 18988 KB Output is correct
28 Correct 326 ms 21416 KB Output is correct
29 Correct 317 ms 21092 KB Output is correct
30 Correct 192 ms 18144 KB Output is correct
31 Correct 325 ms 21796 KB Output is correct
32 Correct 310 ms 21244 KB Output is correct
33 Correct 352 ms 21664 KB Output is correct
34 Correct 334 ms 21600 KB Output is correct
35 Correct 254 ms 19448 KB Output is correct
36 Correct 117 ms 17008 KB Output is correct
37 Correct 347 ms 22328 KB Output is correct
38 Correct 334 ms 21416 KB Output is correct
39 Correct 337 ms 21460 KB Output is correct