oj.uz

Submission #971143

# Submission time Handle Problem Language Result Execution time Memory
971143 2024-04-28T04:28:17 Z yellowtoad Arranging Shoes (IOI19_shoes) C++17
10 / 100
 116 ms 145616 KB 
#include "shoes.h"
#include <iostream>
#include <queue>
#define f first
#define s second
using namespace std;

int p[100010], cnt, nxt, tmp[100010];
queue<pair<int,int>> l;
queue<int> r[100010];

void merge(int l, int r) {
	if (l >= r) return;
	int mid = (l+r)/2;
	merge(l,mid);
	merge(mid+1,r);
	int x = l, y = mid+1;
	for (int i = l; i <= r; i++) {
		if ((y > r) || ((x <= mid) && (p[x] < p[y]))) tmp[i] = p[x++];
		else {
			cnt += mid-x+1;
			tmp[i] = p[y++];
		}
	}
	for (int i = l; i <= r; i++) p[i] = tmp[i];
}

long long count_swaps(std::vector<int> a) {
	for (int i = 0; i < a.size(); i++) {
		if (a[i] < 0) l.push({i,-a[i]});
		else r[a[i]].push(i);
	}
	for (int i = 0; i < a.size(); i++) {
		if (i%2 == 0) {
			p[l.front().f] = i;
			nxt = l.front().s;
			l.pop();
		} else {
			p[r[nxt].front()] = i;
			r[nxt].pop();
		}
	}
	merge(0,a.size()-1);
	return cnt;
}

Compilation message

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:29:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~
shoes.cpp:33:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 68188 KB Output is correct
2 Correct 35 ms 68188 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 68188 KB Output is correct
2 Correct 35 ms 68188 KB Output is correct
3 Correct 31 ms 68236 KB Output is correct
4 Correct 35 ms 68080 KB Output is correct
5 Correct 34 ms 68440 KB Output is correct
6 Correct 32 ms 68068 KB Output is correct
7 Correct 32 ms 68184 KB Output is correct
8 Correct 32 ms 68188 KB Output is correct
9 Correct 31 ms 68264 KB Output is correct
10 Correct 32 ms 68188 KB Output is correct
11 Correct 32 ms 68180 KB Output is correct
12 Correct 31 ms 68188 KB Output is correct
13 Correct 31 ms 68180 KB Output is correct
14 Incorrect 33 ms 68228 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 68188 KB Output is correct
2 Correct 35 ms 68188 KB Output is correct
3 Correct 31 ms 68188 KB Output is correct
4 Correct 31 ms 68148 KB Output is correct
5 Correct 32 ms 68188 KB Output is correct
6 Correct 32 ms 68228 KB Output is correct
7 Correct 31 ms 68184 KB Output is correct
8 Correct 32 ms 68120 KB Output is correct
9 Correct 31 ms 68188 KB Output is correct
10 Correct 31 ms 68188 KB Output is correct
11 Correct 31 ms 68280 KB Output is correct
12 Correct 32 ms 68184 KB Output is correct
13 Correct 33 ms 68188 KB Output is correct
14 Correct 32 ms 68188 KB Output is correct
15 Correct 31 ms 68184 KB Output is correct
16 Correct 31 ms 68188 KB Output is correct
17 Correct 35 ms 68184 KB Output is correct
18 Correct 34 ms 68188 KB Output is correct
19 Correct 34 ms 68176 KB Output is correct
20 Correct 45 ms 68436 KB Output is correct
21 Correct 39 ms 68508 KB Output is correct
22 Runtime error 116 ms 145616 KB Execution killed with signal 11
23 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 68204 KB Output is correct
2 Correct 32 ms 68188 KB Output is correct
3 Correct 31 ms 68188 KB Output is correct
4 Correct 36 ms 68176 KB Output is correct
5 Runtime error 100 ms 144084 KB Execution killed with signal 11
6 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 68188 KB Output is correct
2 Correct 35 ms 68188 KB Output is correct
3 Correct 31 ms 68236 KB Output is correct
4 Correct 35 ms 68080 KB Output is correct
5 Correct 34 ms 68440 KB Output is correct
6 Correct 32 ms 68068 KB Output is correct
7 Correct 32 ms 68184 KB Output is correct
8 Correct 32 ms 68188 KB Output is correct
9 Correct 31 ms 68264 KB Output is correct
10 Correct 32 ms 68188 KB Output is correct
11 Correct 32 ms 68180 KB Output is correct
12 Correct 31 ms 68188 KB Output is correct
13 Correct 31 ms 68180 KB Output is correct
14 Incorrect 33 ms 68228 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 39 ms 68188 KB Output is correct
2 Correct 35 ms 68188 KB Output is correct
3 Correct 31 ms 68236 KB Output is correct
4 Correct 35 ms 68080 KB Output is correct
5 Correct 34 ms 68440 KB Output is correct
6 Correct 32 ms 68068 KB Output is correct
7 Correct 32 ms 68184 KB Output is correct
8 Correct 32 ms 68188 KB Output is correct
9 Correct 31 ms 68264 KB Output is correct
10 Correct 32 ms 68188 KB Output is correct
11 Correct 32 ms 68180 KB Output is correct
12 Correct 31 ms 68188 KB Output is correct
13 Correct 31 ms 68180 KB Output is correct
14 Incorrect 33 ms 68228 KB Output isn't correct
15 Halted 0 ms 0 KB -