Submission #151620

#	Time	Username	Problem	Language	Result	Execution time	Memory
151620		thebes	HicCup (FXCUP4_hiccup)	C++17	24 / 100	23 ms	3328 KiB

hiccup

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;

const int MN = 1e6+6;
int lo, hi, i, f, g;
stack<int> st;
stack<char> ch;

int HicCup(string s){
    lo = 0, hi = s.size();
    while(lo<hi){
        int m = (lo+hi)/2;
        f = 0; g = 1;
        while(st.size()) st.pop();
        while(ch.size()) ch.pop();
        for(i=0;i<s.size();i++){
            if(s[i]=='H'){
                st.push(0);
                ch.push('H');
            }
            else if(s[i]=='C'){
                if(ch.empty()||ch.top()!='H'){
                    g = 0;
                    break;
                }
                ch.pop();
                ch.push('C');
                if(m==0){
                    ch.pop();
                    st.pop();
                    f = 1;
                }
            }
            else if(s[i]=='!'){
                if(ch.empty()&&f) continue;
                else if(ch.empty()){g=0; break;}
                if(ch.top()=='H'&&!f){g=0; break;}
                else if(ch.top()=='H'&&f) continue;
                ch.pop();
                ch.push('!');
                st.top()++;
                if(st.top()==m){
                    f = 1;
                    st.pop();
                    ch.pop();
                }
            }
        }
        if(!g||ch.size()) hi=m;
        else lo=m+1;
    }
    return lo-1;
}

Compilation message (stderr)

hiccup.cpp: In function 'int HicCup(std::__cxx11::string)':
hiccup.cpp:20:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(i=0;i<s.size();i++){
                 ~^~~~~~~~~

• Subtask 1: 24 / 24
• Subtask 2: 0 / 76