oj.uz

Submission #148627

# Submission time Handle Problem Language Result Execution time Memory
148627 2019-09-01T04:47:53 Z Ian and 2-bit memory(#3648, percywtc, nhho, ulna) HicCup (FXCUP4_hiccup) C++17
100 / 100
 161 ms 63224 KB 
#include "hiccup.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> level[1000055];
stack<int> sta;
vector<int> have[1000055];
int pt[1000055];
bool diu[1000055];

list<int> l;

int res;

bool trial(int x, string &S) {
	int n = S.size();

	for (int i = 0; i <= n; i++) pt[i] = 0, diu[i] = true;

	while (!sta.empty()) sta.pop();

	sta.push(n);

	for (int i = 0; i < n; i++) {
		if (S[i] == 'H') {
			sta.push(i);
		} else if (S[i] == 'C') {
			sta.pop();

			if (pt[sta.top()] < have[sta.top()].size() && have[sta.top()][pt[sta.top()]] < i && diu[sta.top()]) {
				return false;
			}

			diu[sta.top()] = false;

			while (pt[sta.top()] < have[sta.top()].size() && have[sta.top()][pt[sta.top()]] < i) {
				pt[sta.top()]++;
			}

			pt[sta.top()] += x;

			if (pt[sta.top()] > have[sta.top()].size()) {
				return false;
			}
		}
	}

	return true;
}
int HicCup(std::string S) {
	int n = S.size();

	for (int i = 0; i <= n; i++) level[i].clear();
	for (int i = 0; i <= n; i++) {
		have[i].clear();
	}

	while (!sta.empty()) sta.pop();

	sta.push(n);

	for (int i = 0; i < n; i++) {
		if (S[i] == 'H') {
			sta.push(i);
		} else if (S[i] == 'C') {
			if (sta.size() == 1) return -1;
			sta.pop();
			level[sta.top()].push_back(i);
		} else {
			have[sta.top()].push_back(i);
		}
	}

	if (sta.size() != 1) return -1;

	int lb = -1, ub = n + 1;

	while (ub - lb > 1) {
		int mid = (ub + lb) >> 1;

		if (trial(mid, S)) lb = mid;
		else ub = mid;
	}

	return lb;
}

Compilation message

hiccup.cpp: In function 'bool trial(int, std::__cxx11::string&)':
hiccup.cpp:30:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if (pt[sta.top()] < have[sta.top()].size() && have[sta.top()][pt[sta.top()]] < i && diu[sta.top()]) {
        ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
hiccup.cpp:36:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    while (pt[sta.top()] < have[sta.top()].size() && have[sta.top()][pt[sta.top()]] < i) {
           ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
hiccup.cpp:42:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    if (pt[sta.top()] > have[sta.top()].size()) {
        ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 47360 KB Output is correct
2 Correct 36 ms 47352 KB Output is correct
3 Correct 36 ms 47360 KB Output is correct
4 Correct 39 ms 48000 KB Output is correct
5 Correct 128 ms 63096 KB Output is correct
6 Correct 49 ms 50296 KB Output is correct
7 Correct 51 ms 50176 KB Output is correct
8 Correct 134 ms 63224 KB Output is correct
9 Correct 143 ms 63224 KB Output is correct
10 Correct 47 ms 50304 KB Output is correct
11 Correct 34 ms 47224 KB Output is correct

Subtask #2
76.0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 47360 KB Output is correct
2 Correct 36 ms 47352 KB Output is correct
3 Correct 36 ms 47360 KB Output is correct
4 Correct 39 ms 48000 KB Output is correct
5 Correct 128 ms 63096 KB Output is correct
6 Correct 49 ms 50296 KB Output is correct
7 Correct 51 ms 50176 KB Output is correct
8 Correct 134 ms 63224 KB Output is correct
9 Correct 143 ms 63224 KB Output is correct
10 Correct 47 ms 50304 KB Output is correct
11 Correct 57 ms 51576 KB Output is correct
12 Correct 55 ms 52084 KB Output is correct
13 Correct 51 ms 50940 KB Output is correct
14 Correct 37 ms 47104 KB Output is correct
15 Correct 104 ms 61028 KB Output is correct
16 Correct 33 ms 47360 KB Output is correct
17 Correct 36 ms 47352 KB Output is correct
18 Correct 37 ms 47736 KB Output is correct
19 Correct 133 ms 59252 KB Output is correct
20 Correct 124 ms 59368 KB Output is correct
21 Correct 147 ms 59236 KB Output is correct
22 Correct 128 ms 58596 KB Output is correct
23 Correct 153 ms 59236 KB Output is correct
24 Correct 120 ms 59236 KB Output is correct
25 Correct 142 ms 61944 KB Output is correct
26 Correct 127 ms 60012 KB Output is correct
27 Correct 161 ms 59492 KB Output is correct
28 Correct 140 ms 58852 KB Output is correct
29 Correct 156 ms 59236 KB Output is correct
30 Correct 36 ms 47360 KB Output is correct
31 Correct 36 ms 47360 KB Output is correct
32 Correct 38 ms 48376 KB Output is correct
33 Correct 34 ms 47224 KB Output is correct