oj.uz

Submission #971145

# Submission time Handle Problem Language Result Execution time Memory
971145 2024-04-28T04:29:29 Z yellowtoad Arranging Shoes (IOI19_shoes) C++17
10 / 100
 112 ms 147824 KB 
#include "shoes.h"
#include <iostream>
#include <queue>
#define f first
#define s second
#define int long long
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<signed> 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:30:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~
shoes.cpp:34:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |  for (int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 68348 KB Output is correct
2 Correct 38 ms 68128 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 68348 KB Output is correct
2 Correct 38 ms 68128 KB Output is correct
3 Correct 35 ms 68188 KB Output is correct
4 Correct 38 ms 68176 KB Output is correct
5 Correct 37 ms 68188 KB Output is correct
6 Correct 34 ms 68188 KB Output is correct
7 Correct 32 ms 68208 KB Output is correct
8 Correct 32 ms 68184 KB Output is correct
9 Correct 43 ms 68104 KB Output is correct
10 Correct 45 ms 68176 KB Output is correct
11 Correct 34 ms 68188 KB Output is correct
12 Correct 33 ms 68228 KB Output is correct
13 Correct 32 ms 68188 KB Output is correct
14 Incorrect 40 ms 68180 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 68348 KB Output is correct
2 Correct 38 ms 68128 KB Output is correct
3 Correct 38 ms 68272 KB Output is correct
4 Correct 32 ms 68180 KB Output is correct
5 Correct 33 ms 68188 KB Output is correct
6 Correct 32 ms 68356 KB Output is correct
7 Correct 33 ms 68188 KB Output is correct
8 Correct 35 ms 68196 KB Output is correct
9 Correct 38 ms 68188 KB Output is correct
10 Correct 37 ms 68188 KB Output is correct
11 Correct 39 ms 68188 KB Output is correct
12 Correct 33 ms 68184 KB Output is correct
13 Correct 32 ms 68188 KB Output is correct
14 Correct 32 ms 68188 KB Output is correct
15 Correct 43 ms 68180 KB Output is correct
16 Correct 36 ms 68112 KB Output is correct
17 Correct 35 ms 68188 KB Output is correct
18 Correct 38 ms 68336 KB Output is correct
19 Correct 43 ms 68180 KB Output is correct
20 Correct 38 ms 68688 KB Output is correct
21 Correct 56 ms 68700 KB Output is correct
22 Runtime error 112 ms 147824 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 35 ms 68188 KB Output is correct
2 Correct 36 ms 68100 KB Output is correct
3 Correct 32 ms 68440 KB Output is correct
4 Correct 32 ms 68176 KB Output is correct
5 Runtime error 111 ms 144680 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 37 ms 68348 KB Output is correct
2 Correct 38 ms 68128 KB Output is correct
3 Correct 35 ms 68188 KB Output is correct
4 Correct 38 ms 68176 KB Output is correct
5 Correct 37 ms 68188 KB Output is correct
6 Correct 34 ms 68188 KB Output is correct
7 Correct 32 ms 68208 KB Output is correct
8 Correct 32 ms 68184 KB Output is correct
9 Correct 43 ms 68104 KB Output is correct
10 Correct 45 ms 68176 KB Output is correct
11 Correct 34 ms 68188 KB Output is correct
12 Correct 33 ms 68228 KB Output is correct
13 Correct 32 ms 68188 KB Output is correct
14 Incorrect 40 ms 68180 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 68348 KB Output is correct
2 Correct 38 ms 68128 KB Output is correct
3 Correct 35 ms 68188 KB Output is correct
4 Correct 38 ms 68176 KB Output is correct
5 Correct 37 ms 68188 KB Output is correct
6 Correct 34 ms 68188 KB Output is correct
7 Correct 32 ms 68208 KB Output is correct
8 Correct 32 ms 68184 KB Output is correct
9 Correct 43 ms 68104 KB Output is correct
10 Correct 45 ms 68176 KB Output is correct
11 Correct 34 ms 68188 KB Output is correct
12 Correct 33 ms 68228 KB Output is correct
13 Correct 32 ms 68188 KB Output is correct
14 Incorrect 40 ms 68180 KB Output isn't correct
15 Halted 0 ms 0 KB -