oj.uz

답안 #149069

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
149069 2019-09-01T05:40:25 Z Dopatii(#3751, bogdan10bos, Gioto, Bodo171) HicCup (FXCUP4_hiccup) C++17
100 / 100
 46 ms 12280 KB 
#include "hiccup.h"
#include <bits/stdc++.h>
using namespace std;

int r[1000005], l[1000005];
string s;
bool solve(int st, int dr, int mij){
    int nr = 0;
    for(int i = dr; i >= st ; --i){
        if(s[i] == 'C'){
            bool ok = solve(l[i] + 1, i - 1, mij);
            if(!ok) return 0;

            i = l[i];
            nr -= mij;
            if(nr < 0) return 0;
        }
        else if(s[i] == '!') ++nr;
    }

    return 1;
}

int HicCup(std::string S) {
    s = S;
	int N = S.size();
    int nrH = 0, nrC = 0;
    for(auto i : S){
        if(i == '!' && (nrH == 0 || nrC == 0)) return -1;
        else if(i == 'H') ++nrH;
        else if(i == 'C'){
            ++nrC;
            if(nrC > nrH) return -1;
        }
    }
    for(int i = 0; i < N - 1 ; ++i)
        if(S[i] == 'H' && S[i + 1] == '!') return -1;
    if(nrH != nrC) return -1;

    for(int i = 0; i < N ; ++i){
        int nr = 0;
        while(i < N && S[i] == 'H') ++nr, ++i;
        if(nr < 2) continue ;

        nr = 0;
        while(i < N && S[i] == 'C') ++nr, ++i;
        if(nr >= 2) return 0;
    }

    stack <int> sto;
    for(int i = 0; i < N ; ++i){
        if(S[i] == 'H') sto.push(i);
        else if(S[i] == 'C'){
            r[sto.top()] = i;
            l[i] = sto.top();
            sto.pop();
        }
    }

    int st = 0, dr = N;
    while(st <= dr){
        int mij = (st + dr) / 2;

        bool ok = solve(0, N - 1, mij);


        if(ok) st = mij + 1;
        else dr = mij - 1;
    }

	return dr;
}

Subtask #1
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 6 ms 384 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 26 ms 4352 KB Output is correct
6 Correct 15 ms 4352 KB Output is correct
7 Correct 15 ms 4352 KB Output is correct
8 Correct 27 ms 4352 KB Output is correct
9 Correct 28 ms 4352 KB Output is correct
10 Correct 15 ms 4224 KB Output is correct
11 Correct 5 ms 512 KB Output is correct

Subtask #2
76.0 / 76.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 6 ms 384 KB Output is correct
3 Correct 6 ms 384 KB Output is correct
4 Correct 6 ms 512 KB Output is correct
5 Correct 26 ms 4352 KB Output is correct
6 Correct 15 ms 4352 KB Output is correct
7 Correct 15 ms 4352 KB Output is correct
8 Correct 27 ms 4352 KB Output is correct
9 Correct 28 ms 4352 KB Output is correct
10 Correct 15 ms 4224 KB Output is correct
11 Correct 16 ms 4352 KB Output is correct
12 Correct 16 ms 4352 KB Output is correct
13 Correct 14 ms 4352 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 16 ms 4352 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 6 ms 640 KB Output is correct
19 Correct 29 ms 12032 KB Output is correct
20 Correct 32 ms 12280 KB Output is correct
21 Correct 31 ms 7552 KB Output is correct
22 Correct 34 ms 4224 KB Output is correct
23 Correct 46 ms 4352 KB Output is correct
24 Correct 31 ms 12152 KB Output is correct
25 Correct 25 ms 4352 KB Output is correct
26 Correct 37 ms 12152 KB Output is correct
27 Correct 28 ms 8440 KB Output is correct
28 Correct 35 ms 4992 KB Output is correct
29 Correct 40 ms 4352 KB Output is correct
30 Correct 5 ms 384 KB Output is correct
31 Correct 5 ms 384 KB Output is correct
32 Correct 7 ms 896 KB Output is correct
33 Correct 5 ms 512 KB Output is correct