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Submission #981397

# Submission time Handle Problem Language Result Execution time Memory
981397 2024-05-13T06:56:09 Z Amaarsaa Strange Device (APIO19_strange_device) C++14
40 / 100
 361 ms 18936 KB 
#include<bits/stdc++.h>

using namespace std;
using ll = long long ;
int main() {
//	freopen("moocast.in", "r", stdin);
//	freopen("moocast.out", "w", stdout);
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;

	cin >> n >> a >> b; 
	s = __gcd(b + 1, a);
	s = a / s;
	p = 1e18/s;
	if ( p < s) {
		 s= 0;
		for (i = 1; i <= n; i ++) {
			cin >> x >> y;
			s += (y -x + 1);
		}		
		cout << s<< endl;
		return 0;
	}
	s = s * b;
	ans = 0;
	map < ll, ll > A;
	vector < pair <ll,ll > > v;
	for (i = 1; i <= n; i ++) {
		cin >> x >> y;
		if ( x / s == y / s) {
			v.push_back({x%s, y%s});
		}
		else {
			if ( x / s + 1 == y / s) {
				v.push_back({x%s, s - 1});
				v.push_back({0, y%s});
			} 
			else {
				cout << s << endl;
				return 0;
			}
		}	
		
	}
	sort(v.begin(), v.end());
	ll mx = -1;
	for (i = 0; i < v.size(); i ++) {
		if ( v[i].first <= mx) {
			ans += max(0ll, v[i].second - mx);
		}
		else ans += (v[i].second - v[i].first + 1);
		mx =max(mx, v[i].second);
	}
	cout << ans << endl;
}

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:48:16: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |  for (i = 0; i < v.size(); i ++) {
      |              ~~^~~~~~~~~~
strange_device.cpp:10:5: warning: unused variable 't' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |     ^
strange_device.cpp:10:11: warning: unused variable 'm' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |           ^
strange_device.cpp:10:18: warning: unused variable 'l' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |                  ^
strange_device.cpp:10:30: warning: unused variable 'lo' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |                              ^~
strange_device.cpp:10:34: warning: unused variable 'hi' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |                                  ^~
strange_device.cpp:10:38: warning: unused variable 'mid' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |                                      ^~~
strange_device.cpp:10:43: warning: unused variable 'sum' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |                                           ^~~
strange_device.cpp:10:54: warning: unused variable 'r' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |                                                      ^
strange_device.cpp:10:63: warning: unused variable 'j' [-Wunused-variable]
   10 |  ll t, n, m, ans,l, a, b, s, lo, hi, mid, sum, x, y, r, p, i, j;
      |                                                               ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 3 ms 688 KB Output is correct
3 Correct 4 ms 736 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 736 KB Output is correct
17 Correct 35 ms 2520 KB Output is correct
18 Correct 1 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 356 KB Output is correct
5 Correct 221 ms 18696 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 298 ms 18876 KB Output is correct
3 Incorrect 219 ms 428 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 298 ms 18876 KB Output is correct
3 Incorrect 219 ms 428 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 298 ms 18876 KB Output is correct
3 Incorrect 219 ms 428 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 34 ms 2544 KB Output is correct
3 Correct 32 ms 2520 KB Output is correct
4 Correct 361 ms 18788 KB Output is correct
5 Correct 31 ms 2468 KB Output is correct
6 Correct 31 ms 2520 KB Output is correct
7 Correct 38 ms 2520 KB Output is correct
8 Correct 36 ms 2516 KB Output is correct
9 Correct 31 ms 2516 KB Output is correct
10 Correct 32 ms 2516 KB Output is correct
11 Correct 31 ms 2772 KB Output is correct
12 Correct 28 ms 2516 KB Output is correct
13 Correct 31 ms 2484 KB Output is correct
14 Correct 316 ms 18936 KB Output is correct
15 Correct 31 ms 2520 KB Output is correct
16 Correct 282 ms 17336 KB Output is correct
17 Correct 291 ms 17848 KB Output is correct
18 Correct 0 ms 344 KB Output is correct

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 3 ms 688 KB Output is correct
3 Correct 4 ms 736 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 4 ms 736 KB Output is correct
17 Correct 35 ms 2520 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 356 KB Output is correct
28 Correct 221 ms 18696 KB Output is correct
29 Correct 0 ms 344 KB Output is correct
30 Correct 298 ms 18876 KB Output is correct
31 Incorrect 219 ms 428 KB Output isn't correct
32 Halted 0 ms 0 KB -