Submission #412371

#	Time	Username	Problem	Language	Result	Execution time	Memory
412371		nichke	Bubble Sort 2 (JOI18_bubblesort2)	C++14	38 / 100	9066 ms	1708 KiB

bubblesort2

#include <bits/stdc++.h>
using namespace std;

vector<int> countScans(vector<int> A, vector<int> X, vector<int> V) {
	vector<int> cnt((int)A.size());
	vector<int> ans;
	for (int i = 0; i < A.size(); i++) {
		for (int j = 0; j < i; j++) {
			if (A[j] > A[i]) {
				cnt[i]++;
			}
		}
	}
	for (int i = 0; i < X.size(); i++) {
		int tmp = A[X[i]];
		A[X[i]] = V[i];
		int res = 0;
		for (int j = X[i] + 1; j < A.size(); j++) {
			if (tmp > A[j] && A[X[i]] > A[j]) continue;
			if (tmp <= A[j] && A[X[i]] <= A[j]) continue;
			if (tmp > A[j] && A[X[i]] <= A[j]) cnt[j]--;
			if (tmp <= A[j] && A[X[i]] > A[j]) cnt[j]++;
		}
		cnt[X[i]] = 0;
		for (int j = X[i] - 1; j >= 0; j--) {
			if (A[j] > A[X[i]]) {
				cnt[X[i]]++;
			}
		}
		for (int j = 0; j < A.size(); j++) {
			res = max(res, cnt[j]);
		}
		ans.push_back(res);
	}
	return ans;
}

Compilation message (stderr)

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:7:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 |  for (int i = 0; i < A.size(); i++) {
      |                  ~~^~~~~~~~~~
bubblesort2.cpp:14:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for (int i = 0; i < X.size(); i++) {
      |                  ~~^~~~~~~~~~
bubblesort2.cpp:18:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |   for (int j = X[i] + 1; j < A.size(); j++) {
      |                          ~~^~~~~~~~~~
bubblesort2.cpp:30:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |   for (int j = 0; j < A.size(); j++) {
      |                   ~~^~~~~~~~~~

• Subtask 1: 17 / 17
• Subtask 2: 21 / 21
• Subtask 3: 0 / 22
• Subtask 4: 0 / 40