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Submission #417359

# Submission time Handle Problem Language Result Execution time Memory
417359 2021-06-03T15:29:05 Z nvmdava Bubble Sort 2 (JOI18_bubblesort2) C++17
17 / 100
 27 ms 2800 KB 
#include "bubblesort2.h"
#include <bits/stdc++.h>
using namespace std;

const int BIG = 100'000'000;

vector<pair<int, int> > val;

int seg[5'000'000], lz[5'000'000];

void pushdown(int id, int l, int r){
	seg[id] += lz[id];
	if(l != r){
		lz[id << 1] += lz[id];
		lz[id << 1 | 1] += lz[id];
	}
	lz[id] = 0;
}

void update(int id, int l, int r, int L, int R, int x){
	if(L <= l && r <= R){
		lz[id] += x;
		pushdown(id, l, r);
		return;
	}
	pushdown(id, l, r);
	if(R < l || r < L) return;
	int m = (l + r) >> 1;
	update(id << 1, l, m, L, R, x);
	update(id << 1 | 1, m + 1, r, L, R, x);
	seg[id] = max(seg[id << 1], seg[id << 1 | 1]);
}

vector<int> countScans(std::vector<int> A,std::vector<int> X,std::vector<int> V){

	lz[1] = -BIG;
	for(int i = 0; i < A.size(); ++i)
		val.push_back({A[i], i});
	for(int i = 0; i < X.size(); ++i)
		val.push_back({V[i], X[i]});
	sort(val.begin(), val.end());
	val.erase(unique(val.begin(), val.end()), val.end());

	for(int i = 0; i < A.size(); ++i)
		A[i] = upper_bound(val.begin(), val.end(), make_pair(A[i], i)) - val.begin();
	for(int i = 0; i < A.size(); ++i)
		V[i] = upper_bound(val.begin(), val.end(), make_pair(V[i], X[i])) - val.begin();

	for(int i = 0; i < A.size(); ++i){
		update(1, 1, val.size(), A[i] + 1, val.size(), -1);
		update(1, 1, val.size(), A[i], A[i], i + BIG);
	}
	
	vector<int> answer(X.size());
	for (int i = 0; i < X.size(); ++i) {
		update(1, 1, val.size(), A[X[i]] + 1, val.size(), 1);
		update(1, 1, val.size(), A[X[i]], A[X[i]], - BIG - X[i]);
		A[X[i]] = V[i];
		update(1, 1, val.size(), A[X[i]] + 1, val.size(), -1);
		update(1, 1, val.size(), A[X[i]], A[X[i]], X[i] + BIG);
		answer[i]=seg[1];
	}

	return answer;
}

Compilation message

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |  for(int i = 0; i < A.size(); ++i)
      |                 ~~^~~~~~~~~~
bubblesort2.cpp:39:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |  for(int i = 0; i < X.size(); ++i)
      |                 ~~^~~~~~~~~~
bubblesort2.cpp:44:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |  for(int i = 0; i < A.size(); ++i)
      |                 ~~^~~~~~~~~~
bubblesort2.cpp:46:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |  for(int i = 0; i < A.size(); ++i)
      |                 ~~^~~~~~~~~~
bubblesort2.cpp:49:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |  for(int i = 0; i < A.size(); ++i){
      |                 ~~^~~~~~~~~~
bubblesort2.cpp:55:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |  for (int i = 0; i < X.size(); ++i) {
      |                  ~~^~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 312 KB Output is correct
3 Correct 5 ms 460 KB Output is correct
4 Correct 5 ms 460 KB Output is correct
5 Correct 5 ms 460 KB Output is correct
6 Correct 5 ms 532 KB Output is correct
7 Correct 5 ms 460 KB Output is correct
8 Correct 6 ms 460 KB Output is correct
9 Correct 7 ms 460 KB Output is correct
10 Correct 7 ms 460 KB Output is correct
11 Correct 5 ms 460 KB Output is correct
12 Correct 5 ms 432 KB Output is correct
13 Correct 5 ms 460 KB Output is correct
14 Correct 5 ms 476 KB Output is correct
15 Correct 5 ms 460 KB Output is correct
16 Correct 5 ms 460 KB Output is correct
17 Correct 5 ms 460 KB Output is correct
18 Correct 5 ms 460 KB Output is correct

Subtask #2
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 312 KB Output is correct
3 Correct 5 ms 460 KB Output is correct
4 Correct 5 ms 460 KB Output is correct
5 Correct 5 ms 460 KB Output is correct
6 Correct 5 ms 532 KB Output is correct
7 Correct 5 ms 460 KB Output is correct
8 Correct 6 ms 460 KB Output is correct
9 Correct 7 ms 460 KB Output is correct
10 Correct 7 ms 460 KB Output is correct
11 Correct 5 ms 460 KB Output is correct
12 Correct 5 ms 432 KB Output is correct
13 Correct 5 ms 460 KB Output is correct
14 Correct 5 ms 476 KB Output is correct
15 Correct 5 ms 460 KB Output is correct
16 Correct 5 ms 460 KB Output is correct
17 Correct 5 ms 460 KB Output is correct
18 Correct 5 ms 460 KB Output is correct
19 Runtime error 22 ms 1920 KB Execution killed with signal 6
20 Halted 0 ms 0 KB -

Subtask #3
0 / 22.0

# Verdict Execution time Memory Grader output
1 Runtime error 27 ms 2800 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 312 KB Output is correct
3 Correct 5 ms 460 KB Output is correct
4 Correct 5 ms 460 KB Output is correct
5 Correct 5 ms 460 KB Output is correct
6 Correct 5 ms 532 KB Output is correct
7 Correct 5 ms 460 KB Output is correct
8 Correct 6 ms 460 KB Output is correct
9 Correct 7 ms 460 KB Output is correct
10 Correct 7 ms 460 KB Output is correct
11 Correct 5 ms 460 KB Output is correct
12 Correct 5 ms 432 KB Output is correct
13 Correct 5 ms 460 KB Output is correct
14 Correct 5 ms 476 KB Output is correct
15 Correct 5 ms 460 KB Output is correct
16 Correct 5 ms 460 KB Output is correct
17 Correct 5 ms 460 KB Output is correct
18 Correct 5 ms 460 KB Output is correct
19 Runtime error 22 ms 1920 KB Execution killed with signal 6
20 Halted 0 ms 0 KB -