oj.uz

Submission #832770

# Submission time Handle Problem Language Result Execution time Memory
832770 2023-08-21T14:41:08 Z aymanrs Sorting (IOI15_sorting) C++14
74 / 100
 1000 ms 18288 KB 
#include <bits/stdc++.h>
#include "sorting.h"
using namespace std;
int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
	if(is_sorted(S, S+N)) return 0;
	M = min(M, 4*N);
	int p[M], q[M];
	int R, l = 0, r = M-1, m, b = M;
	int cp[N];
	for(int i = 0;i < N;i++) cp[i] = S[i];
	while(l <= r){
		R = 0;
		for(int i = 0;i < N;i++) S[i] = cp[i];
		m = l+r>>1;
		for(int i = 0;i <= m;i++){
			if(is_sorted(S, S+N)) break;
			R++;
			swap(S[X[i]], S[Y[i]]);
			int opt[N];

			for(int j = 0;j<N;j++) opt[j]=j;
			for(int j = m;j > i;j--) swap(opt[X[j]], opt[Y[j]]);
			bool f = false;
			for(int j = 0;j < N;j++){
				if(S[j] != opt[j]){
					f = true;
					for(int k = j+1;k < N;k++) {
						if(S[k] == opt[j]) {
							p[R-1] = j;
							q[R-1] = k;
							swap(S[j], S[k]);
							break;
						}
					}
					break;
				}
			}
			if(!f) p[R-1] = q[R-1] = 0;
		}
		if(is_sorted(S, S+N)){
			for(int i = 0;i < R;i++) {
				P[i] = p[i];
				Q[i] = q[i];
			}
			b = R;
			r = m-1;
		} else l = m+1;
	}
	return b;
}

Compilation message

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:14:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   14 |   m = l+r>>1;
      |       ~^~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 4 ms 340 KB Output is correct
22 Correct 4 ms 340 KB Output is correct
23 Correct 5 ms 448 KB Output is correct
24 Correct 4 ms 340 KB Output is correct
25 Correct 3 ms 456 KB Output is correct
26 Correct 3 ms 340 KB Output is correct
27 Correct 4 ms 340 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 404 KB Output is correct
2 Correct 68 ms 480 KB Output is correct
3 Correct 52 ms 464 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 20 ms 468 KB Output is correct
6 Correct 24 ms 472 KB Output is correct
7 Correct 30 ms 468 KB Output is correct
8 Correct 54 ms 468 KB Output is correct
9 Correct 55 ms 488 KB Output is correct
10 Correct 73 ms 444 KB Output is correct
11 Correct 65 ms 488 KB Output is correct
12 Correct 32 ms 480 KB Output is correct
13 Correct 76 ms 476 KB Output is correct
14 Correct 2 ms 468 KB Output is correct

Subtask #6
0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 404 KB Output is correct
2 Correct 68 ms 480 KB Output is correct
3 Correct 52 ms 464 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 20 ms 468 KB Output is correct
6 Correct 24 ms 472 KB Output is correct
7 Correct 30 ms 468 KB Output is correct
8 Correct 54 ms 468 KB Output is correct
9 Correct 55 ms 488 KB Output is correct
10 Correct 73 ms 444 KB Output is correct
11 Correct 65 ms 488 KB Output is correct
12 Correct 32 ms 480 KB Output is correct
13 Correct 76 ms 476 KB Output is correct
14 Correct 2 ms 468 KB Output is correct
15 Execution timed out 1047 ms 18288 KB Time limit exceeded
16 Halted 0 ms 0 KB -