oj.uz

Submission #771765

# Submission time Handle Problem Language Result Execution time Memory
771765 2023-07-03T09:05:23 Z khshg Comparing Plants (IOI20_plants) C++14
0 / 100
 1 ms 256 KB 
#include"plants.h"
#include<bits/stdc++.h>
using namespace std;

vector<int> know, r;
int N;
int goR = 0;

void init(int k, vector<int> _r) {
	swap(r, _r);
	N = (int)r.size();
	for(int i = 0; i + 1 < N; ++i) {
		if(r[i] != r[i + 1] && r[i + 1]) {
			goR = N - 1 - i;
			break;
		}
	}
	rotate(r.begin(), r.begin()+r.size()-goR, r.end());
	int cnt = 0;
	for(int i = 1; i < N; ++i) {
		cnt += (r[i - 1] != r[i] && r[i - 1]);
	}
	if(cnt == 1) {
		for(int i = 0; r[i]; ++i) {
			know.push_back(i);
		}
		for(int i = N - 1; know.size() + 1 < N; --i) {
			know.push_back(i);
		}
	}
	return;
}

int compare_plants(int x, int y) {
	x += goR;
	y += goR;
	x %= N;
	y %= N;
	if((int)know.size()) {
		return know[x] < know[y] ? -1 : 1;
	}
	if(x == 0 && y == N - 1) return r[y] ? 1 : -1;
	if(y - x > 1) {
		return 0;
	}
	return r[x] ? -1 : 1;
}

Compilation message

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:27:38: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   27 |   for(int i = N - 1; know.size() + 1 < N; --i) {
      |                      ~~~~~~~~~~~~~~~~^~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Incorrect 0 ms 212 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -