Submission #1284129

#	Time	Username	Problem	Language	Result	Execution time	Memory
1284129		user736482	Homework (CEOI22_homework)	C++20	100 / 100	309 ms	86512 KiB

Main

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define pb push_back
#define ff first
#define ss second
#define MOD 998244353LL
#define INF 1000000001LL
#define POT (1LL<<20)
#define INFL 1000000000000000099LL
#define pii pair<ll,ll>
#define ppi pair<pii,ll>
#define pip pair<ll,pii>
#define ppp pair<pii,pii>
#define vi vector<ll>
#define vii vector<pii>
#define al(x) x.begin(),x.end()
#define rev(x) reverse(al(x))
#define X 18
template<typename T, typename U>
pair<T, U> operator+(const pair<T, U>& a, const pair<T, U>& b) {
    return {a.first + b.first, a.second + b.second};
}
template<typename T, typename U>
pair<T, U> operator-(const pair<T, U>& a, const pair<T, U>& b) {
    return {a.first - b.first, a.second - b.second};
}
template<typename T, typename U>
ostream& operator<<(ostream& os, const pair<T, U>& p) {
    os<<"{"<<p.ff<<", "<<p.ss<<"}";
    return os;
}
template<typename T>
ostream& operator<<(ostream& os, const vector<T>& v) {
    os << "{";
    for (size_t i = 0; i < v.size(); ++i) {
        if (i) os << ", ";
        os << v[i];
    }
    os << "}";
    return os;
}
ll fct[1000007];
ll fp(ll a,ll b){
    ll c=1;while(b){if(b&1)c=(c*a)%MOD;a=(a*a)%MOD;b/=2;}
    return c;
}
ll n;
pii f(){
    char a,b;
    cin>>a;
    if(a=='?'){n++;return {1,1};}
    cin>>a>>b>>b;
    pii p1=f();
    cin>>b;
    pii p2=f();
    cin>>b;
    if(a=='i')return {min(p1.ff,p2.ff),p1.ss+p2.ss};
    return {p1.ff+p2.ff,min(p1.ss,p2.ss)};
}
void solve(){
    pii p=f();
    cout<<n+2-p.ff-p.ss;
}                                                                   
int main(){
    fct[0]=1;
    for(ll i=1;i<1000007;i++)fct[i]=(fct[i-1]*i)%MOD;
    ll t=1;
    //cin>>t;
    for(ll i=1;i<=t;i++){
        //cout<<"Case #"<<i<<": ";
        solve();
    }
}

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