oj.uz

Submission #572333

# Submission time Handle Problem Language Result Execution time Memory
572333 2022-06-04T09:18:00 Z CpDark Strange Device (APIO19_strange_device) C++17
0 / 100
 1 ms 212 KB 
#include <bits/stdc++.h>
#define fastInput ios::sync_with_stdio(false); cin.tie(nullptr);

using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef pair<ll, ll> pii;
typedef vector<pii> vp;
typedef vector<bool> vb;
typedef vector<vb> vvb;

ll A, B;
inline pii getTime(ll t) {
	ll x = (t + (t / B)) % A;
	ll y = t % B;
	return { x,y };
}

inline void pushTime(pii p, ll mod, vp &points) {
	if (p.first % mod <= p.second % mod) {
		points.push_back({ p.first % mod, 1 });
		points.push_back({ p.second % mod, -1 });
	}
	else {
		points.push_back({ p.first % mod, 1 });
		points.push_back({ mod, -1 });

		points.push_back({ 0, 1 });
		points.push_back({ p.second % mod, -1 });
	}
	
}

int main() {
	fastInput;
	int n;
	cin >> n >> A >> B;

	ll mod = A*B;
	if (mod < 0)mod = 1e18 + 7;
	vp times(n);
	vp points;
	ll l, r;
	for (int i = 0; i < n; i++) {
		cin >> l >> r;
		times[i] = { l,r + 1 };
		pushTime(times[i], mod, points);
	}
	
	sort(points.begin(), points.end());
	ll count = 0;;
	int open = 0;
	int last = -1;
	for (int i = 0; i < points.size(); i++) {
		open += points[i].second;
		if (open == 0) {
			if (last != -1) {
				ll amount = points[i].first - last;
				count += amount;
				last = -1;
			}
		}
		else {
			if (last == -1) {
				last = points[i].first;
			}
		}
	}
	cout << count;

	return 0;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:57:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |  for (int i = 0; i < points.size(); i++) {
      |                  ~~^~~~~~~~~~~~~~~

Subtask #1
0 / 10.0

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

Subtask #2
0 / 5.0

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

Subtask #3
0 / 5.0

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

Subtask #4
0 / 5.0

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

Subtask #5
0 / 5.0

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

Subtask #6
0 / 20.0

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

Subtask #7
0 / 20.0

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

Subtask #8
0 / 30.0

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