Submission #791713

#	Time	Username	Problem	Language	Result	Execution time	Memory
791713		enerelt14	Homework (CEOI22_homework)	C++14	53 / 100	1042 ms	14028 KiB

Main

#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <chrono>
#include <climits>
#include <cmath>
#include <complex>
#include <cstring>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <vector>
#define ff first
#define ss second
using namespace std;
string s;
pair<int, int> solve(int l, int r) {
	if(l == r) return {0, 0};
	int cnt = 0, x;
	if(s[4 + l] != 'm') x = 5 + l;
	else {
		for(int i = 7 + l; i < r; i++) {
			if(s[i] == '(') cnt++;
			if(s[i] == ')') cnt--;
			if(!cnt) {
				x = i + 1;
				break;
			}
		}
	}
	pair<int, int> a = solve(4 + l, x - 1), b = solve(x + 1, r - 1);
	if(s[1 + l] == 'i') return {a.ff + b.ff + 1, min(a.ss, b.ss)};
	else return {min(a.ff, b.ff), a.ss + b.ss + 1};
	return {0, 0};
}

int main() {
	ios::sync_with_stdio(0);cin.tie(0);
	cin >> s;
	int n = (int)s.size() / 7 + 1;
	pair<int, int> ans = solve(0, (int)s.size() - 1);
	cout << n - ans.ff - ans.ss;
}

Compilation message (stderr)

Main.cpp: In function 'std::pair<int, int> solve(int, int)':
Main.cpp:37:39: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   37 |  pair<int, int> a = solve(4 + l, x - 1), b = solve(x + 1, r - 1);
      |                                       ^

• Subtask 1: 10 / 10
• Subtask 2: 13 / 13
• Subtask 3: 0 / 13
• Subtask 4: 30 / 30
• Subtask 5: 0 / 34