Submission #148977

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
148977	2019-09-01T05:29:24 Z	shdut0901(#3758, shdut)	HicCup (FXCUP4_hiccup)	C++17	24 / 100	43 ms	15104 KB

hiccup

#include "hiccup.h"
#include <iostream>
#include <stdio.h>
#include <string>
#include <string.h>
#include <map>
#include <set>
#include <vector>
#include <queue>
#include <algorithm>
#include <assert.h>

using namespace std;

#define rep(i, a, b) for(int i = a; i < b; i++)
#define per(i, a, b) for(int i = b - 1; i >= a; i--)
#define ll long long
#define x first
#define y second
#define vi vector<int>
#define pii pair<int, int>
#define SZ(x) (int)(x.size())
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
#define mod 1000000007
#define inf 1000000007
#define DBG(x) cerr << (#x) << "=" << x << "\n";

#define N 100005

template<typename U, typename V> void Min(U &a, const V &b){if(a > b) a = b;}
template<typename U, typename V> void Max(U &a, const V &b){if(a < b) a = b;}
template<typename U, typename V> void add(U &a, const V &b){a = (a+b) % mod;}

int get(char c){
	if(c == 'H')return 0;
	else if(c == 'C')return 1;
	else return 2;
}
int HicCup(std::string s) {
	int n = s.size();
	vi from(n), vis(n, 0), q(n);
	int a[3] = {0};
	rep(i, 0, n){
		a[get(s[i])]++;
	}
	if(a[0] != a[1] || a[0] == 0)return -1;
	if(get(s[0]) != 0)return -1;
	int m = 0, k, flag = 0, last = -1, pos;
	rep(i, 0, n){
		k = get(s[i]);
		if(k == 0){
			q[m++] = i, flag = 1;
			if(last == 0 && pos != i - 1)return -1;
			last = 0, pos = i;
		}
		else if(k == 1){
			if(m == 0)return -1;
			from[i] = q[--m];
			if(flag){
				if(from[i] != i-1)return -1;
			}
			flag = 0;
			last = 1, pos = i;
		}
	}
	if(m)return -1;
	int r = a[2] / a[0];
	int l = 0, now = 0;
	while(l <= r){
		m = (l + r) >> 1;
		int rem = 0, ok = 1;
		now++;
		per(i, 0, n)if(vis[i] != now){
			k = get(s[i]);
			if(k == 2)rem++;
			else if(k == 1){
				if(rem < m){ok = 0;break;}
				k = from[i];
				vis[k] = now;
				rem -= m;
			}
		}
		if(ok)l = m + 1;
		else r = m - 1;
	}
	l--;
	return l;
}

Compilation message

hiccup.cpp: In function 'int HicCup(std::__cxx11::string)':
hiccup.cpp:55:17: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
    if(last == 0 && pos != i - 1)return -1;
       ~~~~~~~~~~^~~~~~~~~~~~~~~

Subtask #1

24.0 / 24.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	7 ms	896 KB	Output is correct
5	Correct	43 ms	15104 KB	Output is correct
6	Correct	25 ms	15104 KB	Output is correct
7	Correct	27 ms	14968 KB	Output is correct
8	Correct	41 ms	15104 KB	Output is correct
9	Correct	43 ms	14848 KB	Output is correct
10	Correct	25 ms	15104 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct

Subtask #2

0 / 76.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	7 ms	896 KB	Output is correct
5	Correct	43 ms	15104 KB	Output is correct
6	Correct	25 ms	15104 KB	Output is correct
7	Correct	27 ms	14968 KB	Output is correct
8	Correct	41 ms	15104 KB	Output is correct
9	Correct	43 ms	14848 KB	Output is correct
10	Correct	25 ms	15104 KB	Output is correct
11	Correct	28 ms	15104 KB	Output is correct
12	Correct	25 ms	15104 KB	Output is correct
13	Correct	25 ms	14848 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	25 ms	15104 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	1536 KB	Output is correct
19	Correct	29 ms	14968 KB	Output is correct
20	Incorrect	35 ms	14976 KB	Output isn't correct
21	Halted	0 ms	0 KB	-