Submission #705631

#	Time	Username	Problem	Language	Result	Execution time	Memory
705631		krizsu222	Homework (CEOI22_homework)	C++17	100 / 100	61 ms	40000 KiB

Main

#include "bits/stdc++.h"
using namespace std;
using pii = pair <int, int>;

string s;
int question_marks, point;

pii get()
{
    if(s[point] == ',' || s[point] == '(') point += 1;
    if(s[point] == '?') return {1, question_marks};
    if(s[point] == 'm') point += 2;
    if(s[point] == 'a' || s[point] == 'i') point += 1;
    bool ismax = (s[point] == 'x');
    point++;
    pii u = get();
    point++;
    pii w = get();
    point++;
    if(ismax)
        return {u.first + w.first, max(u.second, w.second)};
    else
        return {min(u.first, w.first), u.second + w.second - question_marks - 1};
}

signed main()
{
    cin.tie(0) -> ios_base::sync_with_stdio(0);
    cin >> s;
    question_marks = count(s.begin(), s.end(), '?');
    pii ans = get();
    cout << ans.second - ans.first + 1 << '\n';
}

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