oj.uz

Submission #725857

# Submission time Handle Problem Language Result Execution time Memory
725857 2023-04-18T07:44:12 Z Baytoro Homework (CEOI22_homework) C++17
13 / 100
 181 ms 111620 KB 
#include <bits/stdc++.h>
using namespace std;
#define ios ios::sync_with_stdio(false); cin.tie(NULL);cout.tie(NULL);
#define pb push_back
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define fr first
#define sc second
#define endl '\n'
#define ll long long
#define int long long
void fopn(string name){
	freopen((name+".in").c_str(),"r",stdin);
	freopen((name+".out").c_str(),"w",stdout);
}
const ll INF=1e18,mod=1e9+9,N=2e6+5;
vector<int> g[N];
int t[N];
int dfs(int x, int c){
	//cout<<x<<endl;
	if(t[x]!=c) return 0;
	for(auto it: g[x]){
		if(t[it]) return 1+dfs(it,c);
	}
	return 1;
}
void solve(){
	string s;cin>>s;int n=s.size(), m=0;
	stack<int> st;
	int cur=0;
	for(int i=0;i<n;i++){
		if(s[i]=='n'){
			cur++;
			if(!st.empty()){
				g[st.top()].pb(cur);
			}
			t[cur]=1;
			st.push(cur);
		}
		if(s[i]=='x'){
			cur++;
			if(!st.empty()){
				g[st.top()].pb(cur);
			}
			t[cur]=2;
			st.push(cur);
		}
		if(s[i]=='?'){
			cur++;m++;
			g[st.top()].pb(cur);
		}
		if(s[i]==')') st.pop();
	}
	assert(st.empty());
	cout<<m-max(dfs(1,1),dfs(1,2));
}
main(){
	//fopn("team");
	ios;
	int T=1;
	//cin>>T;
	for(int i=1;i<=T;i++){
		//cout<<"Case #"<<i<<": ";
		solve();
	}
}

Compilation message

Main.cpp:57:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   57 | main(){
      | ^~~~
Main.cpp: In function 'void fopn(std::string)':
Main.cpp:13:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |  freopen((name+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:14:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |  freopen((name+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 47188 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 47188 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 163 ms 106296 KB Output is correct
2 Correct 181 ms 111404 KB Output is correct
3 Correct 161 ms 111344 KB Output is correct
4 Correct 169 ms 111620 KB Output is correct
5 Correct 157 ms 111368 KB Output is correct
6 Correct 155 ms 111384 KB Output is correct
7 Correct 165 ms 111400 KB Output is correct
8 Correct 154 ms 111408 KB Output is correct
9 Correct 155 ms 111560 KB Output is correct
10 Correct 158 ms 111344 KB Output is correct
11 Correct 155 ms 111304 KB Output is correct
12 Correct 160 ms 111300 KB Output is correct
13 Correct 25 ms 47316 KB Output is correct

Subtask #4
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 47188 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 34.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 47188 KB Output isn't correct
2 Halted 0 ms 0 KB -