oj.uz

Submission #410631

# Submission time Handle Problem Language Result Execution time Memory
410631 2021-05-23T07:57:22 Z dynam1c Strange Device (APIO19_strange_device) C++17
0 / 100
 5000 ms 524292 KB 
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

#define endl "\n"
#define all(c) (c).begin(),(c).end()

// when you ponder, divide and conquer

signed main() {
	// freopen("input.txt", "r", stdin); freopen("output.txt", "w", stdout);
	std::ios::sync_with_stdio(false);
	cin.tie(0);
	
	ll n, a, b;
	cin >> n >> a >> b;
	set<pair<ll, ll>> s;
	for (int i = 0; i < n; i++) {
		ll l, r;
		cin >> l >> r;
		for (int t = l; t <= r; t++)
			s.emplace((t+t/b) % a, t%b);
	}
	cout << s.size() << endl;
}
/* --- PSolving ---
 * Simplifying (getting rid of variables, conditions, code logic, etc.)
 * Reframing
 * Solving a subtask (subgoal, aux. problem, removing a condition or fixing a parameter, etc.)
 * Inducing
 * Divide and conquer
 * Working backwards
 * Visual intuition
 * !! Reductions don't have to be specializations, they can be generalizations
 */

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Execution timed out 5064 ms 405156 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Runtime error 2538 ms 524292 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Execution timed out 5064 ms 60528 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Execution timed out 5094 ms 77472 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Execution timed out 5094 ms 77472 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Execution timed out 5094 ms 77472 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Runtime error 1717 ms 524292 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Execution timed out 5064 ms 405156 KB Time limit exceeded
3 Halted 0 ms 0 KB -