oj.uz

답안 #708287

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
708287 2023-03-11T13:55:41 Z 600Mihnea 이상한 기계 (APIO19_strange_device) C++17
10 / 100
 5000 ms 524288 KB 
#include <cmath>
#include <functional>
#include <fstream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <list>
#include <time.h>
#include <math.h>
#include <random>
#include <deque>
#include <queue>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <cassert>
#include <bitset>
#include <sstream>
#include <chrono>
#include <cstring>
#include <numeric>
#include <cstdint>
#include <limits>
#include <numeric>
#include <iostream>


using namespace std;

#define int long long

pair<int, int> get(int t, int a, int b)
{
	int x = (t + t / b) % a;
	int y = t % b;
	return { x, y };
}

bool same_dumb(int t1, int t2, int a, int b)
{
	return get(t1, a, b) == get(t2, a, b);
}

int gcd(int a, int b)
{
	if (b == 0) return a;
	return gcd(b, a % b);
}

bool same_smart(int t1, int t2, int a, int b)
{
	a /= gcd(a, b + 1);
	a *= b;
	return t1 % a == t2 % a;
}

const int lim = 20;

void print(vector<int> v)
{
	cout << " ---> ";
	for (auto& x : v)
	{
		cout << x << " ";
	}
	cout << "\n";
}

void solve()
{ 
	int n, mod;
	cin >> n;
	{
		int a, b;
		cin >> a >> b;
		a /= gcd(a, b + 1);
		a *= b;
		mod = a;
	}
	set<int> s;
	vector<pair<int, int>> segs(n);
	for (auto& it : segs)
	{
		cin >> it.first >> it.second;
		for (int j = it.first; j <= it.second; j++) s.insert(j % mod);
	}
	cout << (int)s.size() << "\n";
	exit(0);
}

signed main()
{
#ifdef ONPC	
	FILE* stream;
	freopen_s(&stream, "input.txt", "r", stdin);
#else
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#endif

	solve();

	int cnt = 0;

	for (int a = 2; a <= lim; a++)
	{
		for (int b = 1; b <= lim; b++)
		{
			for (int t = 0; t <= 2 * a * b; t++)
			{
				for (int t2 = 0; t2 <= 2 * a * b; t2++)
				{
					bool s1 = same_dumb(t, t2, a, b);
					bool s2 = same_smart(t, t2, a, b);
					if (s1 != s2)
					{
						cout << "WA!\n";
						return 0;
					}
				}
			}
		
			cout << "done " << a << " " << b << "\n";
		}
	}

	cout << "Ac!\n";

	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:105:6: warning: unused variable 'cnt' [-Wunused-variable]
  105 |  int cnt = 0;
      |      ^~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 33 ms 9840 KB Output is correct
3 Correct 52 ms 13992 KB Output is correct
4 Correct 2 ms 724 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 5 ms 956 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 316 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 27 ms 5324 KB Output is correct
16 Correct 18 ms 5676 KB Output is correct
17 Correct 51 ms 10276 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 3259 ms 524288 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 81 ms 24216 KB Output is correct
3 Correct 80 ms 24056 KB Output is correct
4 Correct 87 ms 23024 KB Output is correct
5 Execution timed out 5053 ms 62616 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 487 ms 76748 KB Output is correct
3 Runtime error 2219 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 487 ms 76748 KB Output is correct
3 Runtime error 2219 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 487 ms 76748 KB Output is correct
3 Runtime error 2219 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 2279 ms 524288 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 33 ms 9840 KB Output is correct
3 Correct 52 ms 13992 KB Output is correct
4 Correct 2 ms 724 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 5 ms 956 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 316 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 27 ms 5324 KB Output is correct
16 Correct 18 ms 5676 KB Output is correct
17 Correct 51 ms 10276 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Runtime error 3259 ms 524288 KB Execution killed with signal 9
21 Halted 0 ms 0 KB -