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Submission #732059

# Submission time Handle Problem Language Result Execution time Memory
732059 2023-04-28T10:13:43 Z US3RN4M3 Strange Device (APIO19_strange_device) C++17
100 / 100
 1589 ms 84696 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
ll n, A, B;
vector<pair<ll, ll>> segs;
void solve2() {
	ll ans = 0;
	for(auto & [l, r] : segs) {
		cin >> l >> r;
		ans += r - l + 1;
	}
	cout << ans << endl;
}

ll gcd(ll a, ll b) {
	return b ? gcd(b, a % b) : a;
}

//x(B+1) == 0
//x(b+1)
main() {
	cin >> n >> A >> B;
	segs.resize(n);
	ll C = A / (gcd(B + 1, A));
	__int128 X = C;
	__int128 Y = B;
	__int128 Z = X * Y;
	ll cycle;
	if(Z >= 1e18) cycle = 1e18;
	else cycle = Z;
	vector<pair<ll, bool>> evt;
	for(auto & [l, r] : segs) {
		cin >> l >> r;
		r++;
		if(l >= cycle) {
			ll tmp = (l / cycle) * cycle;
			l -= tmp;
			r -= tmp;
		}
		if(r >= cycle*2) {
			cout << cycle << endl;
			return 0;
		}
		if(r >= cycle) {
			evt.push_back({l, true});
			evt.push_back({0, true});
			evt.push_back({r - cycle, false});
		} else {
			evt.push_back({l, true});
			evt.push_back({r, false});
		}
	}
	sort(evt.begin(), evt.end());
	ll prev = 0;
	int cnt = 0;
	ll ans = 0;
	for(auto [t, b] : evt) {
		ll delta = t - prev;
		prev = t;
		if(cnt > 0) ans += delta;
		if(b) cnt++;
		else cnt--;
	}
	if(cnt > 0) ans += cycle - prev;
	cout << ans << endl;
}

Compilation message

strange_device.cpp:21:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   21 | main() {
      | ^~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 14 ms 1456 KB Output is correct
3 Correct 16 ms 1432 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 14 ms 1456 KB Output is correct
17 Correct 142 ms 8724 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 312 KB Output is correct
4 Correct 2 ms 340 KB Output is correct
5 Correct 973 ms 49024 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1448 ms 52360 KB Output is correct
3 Correct 1384 ms 49300 KB Output is correct
4 Correct 1400 ms 49404 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1448 ms 52360 KB Output is correct
3 Correct 1384 ms 49300 KB Output is correct
4 Correct 1400 ms 49404 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1394 ms 49348 KB Output is correct
7 Correct 1369 ms 49356 KB Output is correct
8 Correct 1418 ms 49496 KB Output is correct
9 Correct 1458 ms 49400 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1448 ms 52360 KB Output is correct
3 Correct 1384 ms 49300 KB Output is correct
4 Correct 1400 ms 49404 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 159 ms 8840 KB Output is correct
7 Correct 147 ms 8836 KB Output is correct
8 Correct 141 ms 8776 KB Output is correct
9 Correct 138 ms 8736 KB Output is correct
10 Correct 152 ms 8836 KB Output is correct
11 Correct 149 ms 8888 KB Output is correct
12 Correct 137 ms 8764 KB Output is correct
13 Correct 143 ms 8792 KB Output is correct
14 Correct 171 ms 8836 KB Output is correct
15 Correct 145 ms 8916 KB Output is correct
16 Correct 146 ms 8944 KB Output is correct
17 Correct 144 ms 8836 KB Output is correct
18 Correct 1400 ms 49336 KB Output is correct
19 Correct 1409 ms 49288 KB Output is correct
20 Correct 1523 ms 49264 KB Output is correct
21 Correct 161 ms 8764 KB Output is correct
22 Correct 142 ms 8852 KB Output is correct
23 Correct 452 ms 27420 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 148 ms 8732 KB Output is correct
3 Correct 147 ms 8948 KB Output is correct
4 Correct 1589 ms 52380 KB Output is correct
5 Correct 152 ms 8976 KB Output is correct
6 Correct 163 ms 8896 KB Output is correct
7 Correct 146 ms 8840 KB Output is correct
8 Correct 145 ms 8812 KB Output is correct
9 Correct 155 ms 8932 KB Output is correct
10 Correct 160 ms 8732 KB Output is correct
11 Correct 140 ms 8768 KB Output is correct
12 Correct 142 ms 8764 KB Output is correct
13 Correct 140 ms 8800 KB Output is correct
14 Correct 1553 ms 52340 KB Output is correct
15 Correct 150 ms 8724 KB Output is correct
16 Correct 1375 ms 53244 KB Output is correct
17 Correct 1358 ms 53472 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 14 ms 1456 KB Output is correct
3 Correct 16 ms 1432 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 14 ms 1456 KB Output is correct
17 Correct 142 ms 8724 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 292 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 2 ms 312 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 973 ms 49024 KB Output is correct
29 Correct 0 ms 212 KB Output is correct
30 Correct 1448 ms 52360 KB Output is correct
31 Correct 1384 ms 49300 KB Output is correct
32 Correct 1400 ms 49404 KB Output is correct
33 Correct 0 ms 212 KB Output is correct
34 Correct 1394 ms 49348 KB Output is correct
35 Correct 1369 ms 49356 KB Output is correct
36 Correct 1418 ms 49496 KB Output is correct
37 Correct 1458 ms 49400 KB Output is correct
38 Correct 1 ms 212 KB Output is correct
39 Correct 159 ms 8840 KB Output is correct
40 Correct 147 ms 8836 KB Output is correct
41 Correct 141 ms 8776 KB Output is correct
42 Correct 138 ms 8736 KB Output is correct
43 Correct 152 ms 8836 KB Output is correct
44 Correct 149 ms 8888 KB Output is correct
45 Correct 137 ms 8764 KB Output is correct
46 Correct 143 ms 8792 KB Output is correct
47 Correct 171 ms 8836 KB Output is correct
48 Correct 145 ms 8916 KB Output is correct
49 Correct 146 ms 8944 KB Output is correct
50 Correct 144 ms 8836 KB Output is correct
51 Correct 1400 ms 49336 KB Output is correct
52 Correct 1409 ms 49288 KB Output is correct
53 Correct 1523 ms 49264 KB Output is correct
54 Correct 161 ms 8764 KB Output is correct
55 Correct 142 ms 8852 KB Output is correct
56 Correct 452 ms 27420 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 148 ms 8732 KB Output is correct
59 Correct 147 ms 8948 KB Output is correct
60 Correct 1589 ms 52380 KB Output is correct
61 Correct 152 ms 8976 KB Output is correct
62 Correct 163 ms 8896 KB Output is correct
63 Correct 146 ms 8840 KB Output is correct
64 Correct 145 ms 8812 KB Output is correct
65 Correct 155 ms 8932 KB Output is correct
66 Correct 160 ms 8732 KB Output is correct
67 Correct 140 ms 8768 KB Output is correct
68 Correct 142 ms 8764 KB Output is correct
69 Correct 140 ms 8800 KB Output is correct
70 Correct 1553 ms 52340 KB Output is correct
71 Correct 150 ms 8724 KB Output is correct
72 Correct 1375 ms 53244 KB Output is correct
73 Correct 1358 ms 53472 KB Output is correct
74 Correct 1 ms 212 KB Output is correct
75 Correct 1 ms 340 KB Output is correct
76 Correct 0 ms 212 KB Output is correct
77 Correct 0 ms 296 KB Output is correct
78 Correct 1 ms 300 KB Output is correct
79 Correct 15 ms 1488 KB Output is correct
80 Correct 1551 ms 84520 KB Output is correct
81 Correct 1542 ms 84592 KB Output is correct
82 Correct 1512 ms 84512 KB Output is correct
83 Correct 1478 ms 84472 KB Output is correct
84 Correct 1494 ms 84608 KB Output is correct
85 Correct 1484 ms 84696 KB Output is correct
86 Correct 441 ms 31924 KB Output is correct
87 Correct 1 ms 296 KB Output is correct