Submission #205867

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
205867	2020-03-01T09:15:01 Z	mraron	Strange Device (APIO19_strange_device)	C++14	100 / 100	2340 ms	67188 KB

strange_device

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int main() {
	ll n,a,b;
	cin>>n>>a>>b;
	ll len=0;
	vector<pair<ll,ll>> lst(n);
	for(int i=0;i<n;++i) {
		cin>>lst[i].first>>lst[i].second;
		len+=lst[i].second-lst[i].first+1;
	}
	ll div=__gcd(a,b+1);
	__int128 A=a/div;
	__int128 B=b;
	if(A*B>__int128(1000000000000000000LL)) {
		cout<<len<<"\n";
		return 0;
	}
	ll mod=(a/div)*b;
	vector<pair<ll,ll>> ivs;
	for(auto i:lst) {
		ll div1=i.first/mod, div2=i.second/mod;
		ll mod1=i.first%mod, mod2=i.second%mod;
		if(mod1<=mod2) {
			if(div1<div2) {
				cout<<mod<<"\n";
				return 0;
			}
			ivs.push_back({mod1,mod2});
		}else {
			if(div1+1==div2) {
				ivs.push_back({mod1, mod-1});
				ivs.push_back({0,mod2});
			}else {
				cout<<mod<<"\n";
				return 0;
			}
		}
	}
	sort(ivs.begin(), ivs.end());
	ll last=-1;
	ll ans=0;
	for(auto i:ivs) {
		if(last<i.second) {
			ans+=i.second-max(last+1, i.first)+1;
		}
		last=max(last, i.second);
	}
	cout<<ans<<"\n";
	
	
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	256 KB	Output is correct
2	Correct	27 ms	1272 KB	Output is correct
3	Correct	28 ms	1272 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	6 ms	376 KB	Output is correct
6	Correct	5 ms	428 KB	Output is correct
7	Correct	6 ms	376 KB	Output is correct
8	Correct	5 ms	248 KB	Output is correct
9	Correct	5 ms	380 KB	Output is correct
10	Correct	6 ms	256 KB	Output is correct
11	Correct	6 ms	256 KB	Output is correct
12	Correct	5 ms	256 KB	Output is correct
13	Correct	5 ms	256 KB	Output is correct
14	Correct	5 ms	256 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	26 ms	1272 KB	Output is correct
17	Correct	234 ms	7916 KB	Output is correct
18	Correct	5 ms	256 KB	Output is correct

Subtask #2
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	5 ms	256 KB	Output is correct
3	Correct	5 ms	256 KB	Output is correct
4	Correct	5 ms	256 KB	Output is correct
5	Correct	5 ms	256 KB	Output is correct

Subtask #3
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	7 ms	376 KB	Output is correct
3	Correct	8 ms	376 KB	Output is correct
4	Correct	7 ms	376 KB	Output is correct
5	Correct	1576 ms	55800 KB	Output is correct

Subtask #4
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	376 KB	Output is correct
2	Correct	2213 ms	46280 KB	Output is correct
3	Correct	2179 ms	46228 KB	Output is correct
4	Correct	2209 ms	67184 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	376 KB	Output is correct
2	Correct	2213 ms	46280 KB	Output is correct
3	Correct	2179 ms	46228 KB	Output is correct
4	Correct	2209 ms	67184 KB	Output is correct
5	Correct	5 ms	256 KB	Output is correct
6	Correct	2205 ms	67188 KB	Output is correct
7	Correct	2221 ms	66124 KB	Output is correct
8	Correct	2224 ms	67156 KB	Output is correct
9	Correct	2315 ms	65920 KB	Output is correct

Subtask #6
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	376 KB	Output is correct
2	Correct	2213 ms	46280 KB	Output is correct
3	Correct	2179 ms	46228 KB	Output is correct
4	Correct	2209 ms	67184 KB	Output is correct
5	Correct	5 ms	256 KB	Output is correct
6	Correct	222 ms	7788 KB	Output is correct
7	Correct	237 ms	7920 KB	Output is correct
8	Correct	234 ms	7788 KB	Output is correct
9	Correct	238 ms	7916 KB	Output is correct
10	Correct	232 ms	7788 KB	Output is correct
11	Correct	235 ms	7788 KB	Output is correct
12	Correct	231 ms	7788 KB	Output is correct
13	Correct	229 ms	7932 KB	Output is correct
14	Correct	243 ms	7788 KB	Output is correct
15	Correct	233 ms	7788 KB	Output is correct
16	Correct	242 ms	7788 KB	Output is correct
17	Correct	229 ms	7788 KB	Output is correct
18	Correct	2317 ms	66748 KB	Output is correct
19	Correct	2264 ms	66072 KB	Output is correct
20	Correct	2321 ms	66772 KB	Output is correct
21	Correct	231 ms	7916 KB	Output is correct
22	Correct	228 ms	8060 KB	Output is correct
23	Correct	732 ms	27120 KB	Output is correct

Subtask #7
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	256 KB	Output is correct
2	Correct	228 ms	7788 KB	Output is correct
3	Correct	231 ms	7908 KB	Output is correct
4	Correct	2292 ms	66840 KB	Output is correct
5	Correct	228 ms	7788 KB	Output is correct
6	Correct	227 ms	7788 KB	Output is correct
7	Correct	228 ms	7916 KB	Output is correct
8	Correct	226 ms	7916 KB	Output is correct
9	Correct	233 ms	7812 KB	Output is correct
10	Correct	230 ms	7916 KB	Output is correct
11	Correct	237 ms	7788 KB	Output is correct
12	Correct	226 ms	7788 KB	Output is correct
13	Correct	227 ms	7788 KB	Output is correct
14	Correct	2260 ms	66892 KB	Output is correct
15	Correct	233 ms	7788 KB	Output is correct
16	Correct	2218 ms	66880 KB	Output is correct
17	Correct	2217 ms	67056 KB	Output is correct
18	Correct	5 ms	256 KB	Output is correct

Subtask #8
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	7 ms	256 KB	Output is correct
2	Correct	27 ms	1272 KB	Output is correct
3	Correct	28 ms	1272 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	6 ms	376 KB	Output is correct
6	Correct	5 ms	428 KB	Output is correct
7	Correct	6 ms	376 KB	Output is correct
8	Correct	5 ms	248 KB	Output is correct
9	Correct	5 ms	380 KB	Output is correct
10	Correct	6 ms	256 KB	Output is correct
11	Correct	6 ms	256 KB	Output is correct
12	Correct	5 ms	256 KB	Output is correct
13	Correct	5 ms	256 KB	Output is correct
14	Correct	5 ms	256 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	26 ms	1272 KB	Output is correct
17	Correct	234 ms	7916 KB	Output is correct
18	Correct	5 ms	256 KB	Output is correct
19	Correct	5 ms	256 KB	Output is correct
20	Correct	5 ms	256 KB	Output is correct
21	Correct	5 ms	256 KB	Output is correct
22	Correct	5 ms	256 KB	Output is correct
23	Correct	5 ms	256 KB	Output is correct
24	Correct	5 ms	256 KB	Output is correct
25	Correct	7 ms	376 KB	Output is correct
26	Correct	8 ms	376 KB	Output is correct
27	Correct	7 ms	376 KB	Output is correct
28	Correct	1576 ms	55800 KB	Output is correct
29	Correct	7 ms	376 KB	Output is correct
30	Correct	2213 ms	46280 KB	Output is correct
31	Correct	2179 ms	46228 KB	Output is correct
32	Correct	2209 ms	67184 KB	Output is correct
33	Correct	5 ms	256 KB	Output is correct
34	Correct	2205 ms	67188 KB	Output is correct
35	Correct	2221 ms	66124 KB	Output is correct
36	Correct	2224 ms	67156 KB	Output is correct
37	Correct	2315 ms	65920 KB	Output is correct
38	Correct	5 ms	256 KB	Output is correct
39	Correct	222 ms	7788 KB	Output is correct
40	Correct	237 ms	7920 KB	Output is correct
41	Correct	234 ms	7788 KB	Output is correct
42	Correct	238 ms	7916 KB	Output is correct
43	Correct	232 ms	7788 KB	Output is correct
44	Correct	235 ms	7788 KB	Output is correct
45	Correct	231 ms	7788 KB	Output is correct
46	Correct	229 ms	7932 KB	Output is correct
47	Correct	243 ms	7788 KB	Output is correct
48	Correct	233 ms	7788 KB	Output is correct
49	Correct	242 ms	7788 KB	Output is correct
50	Correct	229 ms	7788 KB	Output is correct
51	Correct	2317 ms	66748 KB	Output is correct
52	Correct	2264 ms	66072 KB	Output is correct
53	Correct	2321 ms	66772 KB	Output is correct
54	Correct	231 ms	7916 KB	Output is correct
55	Correct	228 ms	8060 KB	Output is correct
56	Correct	732 ms	27120 KB	Output is correct
57	Correct	5 ms	256 KB	Output is correct
58	Correct	228 ms	7788 KB	Output is correct
59	Correct	231 ms	7908 KB	Output is correct
60	Correct	2292 ms	66840 KB	Output is correct
61	Correct	228 ms	7788 KB	Output is correct
62	Correct	227 ms	7788 KB	Output is correct
63	Correct	228 ms	7916 KB	Output is correct
64	Correct	226 ms	7916 KB	Output is correct
65	Correct	233 ms	7812 KB	Output is correct
66	Correct	230 ms	7916 KB	Output is correct
67	Correct	237 ms	7788 KB	Output is correct
68	Correct	226 ms	7788 KB	Output is correct
69	Correct	227 ms	7788 KB	Output is correct
70	Correct	2260 ms	66892 KB	Output is correct
71	Correct	233 ms	7788 KB	Output is correct
72	Correct	2218 ms	66880 KB	Output is correct
73	Correct	2217 ms	67056 KB	Output is correct
74	Correct	5 ms	256 KB	Output is correct
75	Correct	6 ms	504 KB	Output is correct
76	Correct	5 ms	256 KB	Output is correct
77	Correct	5 ms	256 KB	Output is correct
78	Correct	5 ms	256 KB	Output is correct
79	Correct	28 ms	1272 KB	Output is correct
80	Correct	2340 ms	67116 KB	Output is correct
81	Correct	2293 ms	66976 KB	Output is correct
82	Correct	2257 ms	66880 KB	Output is correct
83	Correct	2264 ms	66924 KB	Output is correct
84	Correct	2268 ms	66652 KB	Output is correct
85	Correct	2238 ms	66216 KB	Output is correct
86	Correct	746 ms	26720 KB	Output is correct
87	Correct	5 ms	256 KB	Output is correct

Submission #205867

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