Submission #1266154

#	Time	Username	Problem	Language	Result	Execution time	Memory
1266154		PlayVoltz	Homework (CEOI22_homework)	C++20	100 / 100	51 ms	38840 KiB

Main

#include <cstdio>
#include <stdio.h>
#include <stdbool.h>
#include <iostream>
#include <map>
#include <vector>
#include <climits>
#include <stack>
#include <string>
#include <queue>
#include <algorithm>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cmath>
#include <cctype>
#include <bitset>
#include <iomanip>
#include <cstring>
#include <numeric>
#include <cassert>
using namespace std;
 
#define int long long
#define pii pair<int, int>
#define mp make_pair
#define pb push_back
#define fi first
#define se second

int n, i=0;
string s;

pii calc(){
	pii l, r;
	if (s[i]=='?')return mp(1ll, n);
	char c=s[i+1];
	i+=4;
	l=calc();
	i+=2;
	r=calc();
	++i;
	if (c=='i')return mp(min(l.fi, r.fi), l.se+r.se-n-1);
	return mp(l.fi+r.fi, max(l.se, r.se));
	
}

int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>s;
	n=count(s.begin(), s.end(), '?');
	pii ans=calc();
	cout<<ans.se-ans.fi+1;
}

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