Submission #588988

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
588988	2022-07-04T08:36:44 Z	Arnch	The Potion of Great Power (CEOI20_potion)	C++17	14 / 100	1216 ms	58728 KB

potion

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

const int N = 1e3 + 10, maxn = 1e6 + 10;

int n, d, h[maxn], a[maxn], b[maxn];
bool mark[maxn];
vector<int> pos[maxn], val[maxn];

void init(int N, int D, int H[]) {
	n = N, d = D;
	for(int i = 0; i < n; i++) h[i] = H[i];
}

void curseChanges(int U, int A[], int B[]) {
	for(int i = 0; i < U; i++) {
		a[i] = A[i], b[i] = B[i];
		pos[a[i]].push_back(b[i]), pos[b[i]].push_back(a[i]);
	}

	for(int i = 0; i < n; i++) {
		sort(pos[i].begin(), pos[i].end());
		int cnt = 0;
		for(int j = 0; j < pos[i].size(); j++) {
			cnt++;
			if(j == pos[i].size() - 1 || pos[i][j] != pos[i][j + 1]) {
				if(cnt % 2 == 1) val[i].push_back(h[pos[i][j]]);
				cnt = 0;
				continue;
			}
		}
		sort(val[i].begin(), val[i].end());
	}

}

int question(int x, int y, int v) {
	int ans = 1e9;
	for(auto i : val[x]) {
		int pos = lower_bound(val[y].begin(), val[y].end(), i) - val[y].begin();
		if(pos != val[y].size()) ans = min(ans, val[y][pos] - i);
	}
	for(auto i : val[y]) {
		int pos = lower_bound(val[x].begin(), val[x].end(), i) - val[x].begin();
		if(pos != val[x].size()) ans = min(ans, val[x][pos] - i);
	}

	return ans;
}

Compilation message

potion.cpp: In function 'void curseChanges(int, int*, int*)':
potion.cpp:24:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   for(int j = 0; j < pos[i].size(); j++) {
      |                  ~~^~~~~~~~~~~~~~~
potion.cpp:26:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |    if(j == pos[i].size() - 1 || pos[i][j] != pos[i][j + 1]) {
      |       ~~^~~~~~~~~~~~~~~~~~~~
potion.cpp: In function 'int question(int, int, int)':
potion.cpp:41:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |   if(pos != val[y].size()) ans = min(ans, val[y][pos] - i);
      |      ~~~~^~~~~~~~~~~~~~~~
potion.cpp:45:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |   if(pos != val[x].size()) ans = min(ans, val[x][pos] - i);
      |      ~~~~^~~~~~~~~~~~~~~~

Subtask #1
0 / 0.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	23 ms	47184 KB	Incorrect
2	Halted	0 ms	0 KB	-

Subtask #2
0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	23 ms	47312 KB	Incorrect
2	Halted	0 ms	0 KB	-

Subtask #3
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	164 ms	58728 KB	Output is correct
2	Correct	178 ms	58652 KB	Output is correct
3	Correct	120 ms	53172 KB	Output is correct
4	Correct	589 ms	53524 KB	Output is correct
5	Correct	210 ms	55672 KB	Output is correct
6	Correct	1216 ms	56832 KB	Output is correct
7	Correct	231 ms	57072 KB	Output is correct