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Submission #255215

# Submission time Handle Problem Language Result Execution time Memory
255215 2020-07-31T14:43:30 Z maximath_1 Strange Device (APIO19_strange_device) C++11
100 / 100
 613 ms 26984 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
const int inf=1e18+69;
vector<pair<int, int> >seg;
int32_t main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n, a, b;
	cin>>n>>a>>b;
	int gcd=__gcd(a, b+1);
	int t;
	if(a/gcd>inf/b) t=inf; //a*b/gcd>inf
	else t=(a/gcd)*b;
	for(int i=0; i<n; i++){
		int l, r; cin>>l>>r;
		if(r-l+1>=t) seg.push_back({0, t-1});
		else{
			l%=t; r%=t;
			if(l<=r) seg.push_back({l, r});
			else{
				seg.push_back({l, t-1});
				seg.push_back({0, r});
			}
		}
	}
	sort(seg.begin(), seg.end());
	int ans=0;
	for(int i=0; i<(int)seg.size(); i++){
		int l=seg[i].first, r=seg[i].second;
		int nxt=i;
		while(nxt+1<seg.size()&&seg[nxt+1].first<=r){
			r=max(r, seg[nxt+1].second); nxt++;
		}
		ans+=r-l+1; i=nxt;
	}
	cout<<ans<<endl; return 0;
}

Compilation message

strange_device.cpp: In function 'int32_t main()':
strange_device.cpp:32:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(nxt+1<seg.size()&&seg[nxt+1].first<=r){
         ~~~~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 6 ms 1152 KB Output is correct
3 Correct 6 ms 1152 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 6 ms 1152 KB Output is correct
17 Correct 56 ms 5740 KB Output is correct
18 Correct 0 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 371 ms 17496 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 500 ms 26836 KB Output is correct
3 Correct 502 ms 26964 KB Output is correct
4 Correct 531 ms 26836 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 500 ms 26836 KB Output is correct
3 Correct 502 ms 26964 KB Output is correct
4 Correct 531 ms 26836 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 508 ms 26932 KB Output is correct
7 Correct 524 ms 26984 KB Output is correct
8 Correct 506 ms 26836 KB Output is correct
9 Correct 546 ms 26836 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 500 ms 26836 KB Output is correct
3 Correct 502 ms 26964 KB Output is correct
4 Correct 531 ms 26836 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 50 ms 5796 KB Output is correct
7 Correct 55 ms 5736 KB Output is correct
8 Correct 55 ms 5876 KB Output is correct
9 Correct 51 ms 5740 KB Output is correct
10 Correct 56 ms 5740 KB Output is correct
11 Correct 57 ms 5736 KB Output is correct
12 Correct 54 ms 5864 KB Output is correct
13 Correct 55 ms 5736 KB Output is correct
14 Correct 49 ms 5740 KB Output is correct
15 Correct 55 ms 5736 KB Output is correct
16 Correct 53 ms 5740 KB Output is correct
17 Correct 55 ms 5776 KB Output is correct
18 Correct 507 ms 18132 KB Output is correct
19 Correct 522 ms 18132 KB Output is correct
20 Correct 600 ms 18004 KB Output is correct
21 Correct 56 ms 5740 KB Output is correct
22 Correct 51 ms 5740 KB Output is correct
23 Correct 159 ms 18528 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 54 ms 5740 KB Output is correct
3 Correct 61 ms 5736 KB Output is correct
4 Correct 613 ms 26740 KB Output is correct
5 Correct 58 ms 5736 KB Output is correct
6 Correct 78 ms 5736 KB Output is correct
7 Correct 58 ms 5736 KB Output is correct
8 Correct 57 ms 5736 KB Output is correct
9 Correct 55 ms 5740 KB Output is correct
10 Correct 54 ms 5736 KB Output is correct
11 Correct 68 ms 5740 KB Output is correct
12 Correct 51 ms 5740 KB Output is correct
13 Correct 56 ms 5736 KB Output is correct
14 Correct 575 ms 26836 KB Output is correct
15 Correct 67 ms 5784 KB Output is correct
16 Correct 516 ms 18008 KB Output is correct
17 Correct 502 ms 18004 KB Output is correct
18 Correct 0 ms 384 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 6 ms 1152 KB Output is correct
3 Correct 6 ms 1152 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 6 ms 1152 KB Output is correct
17 Correct 56 ms 5740 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 0 ms 384 KB Output is correct
22 Correct 0 ms 384 KB Output is correct
23 Correct 0 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 371 ms 17496 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 500 ms 26836 KB Output is correct
31 Correct 502 ms 26964 KB Output is correct
32 Correct 531 ms 26836 KB Output is correct
33 Correct 0 ms 384 KB Output is correct
34 Correct 508 ms 26932 KB Output is correct
35 Correct 524 ms 26984 KB Output is correct
36 Correct 506 ms 26836 KB Output is correct
37 Correct 546 ms 26836 KB Output is correct
38 Correct 0 ms 384 KB Output is correct
39 Correct 50 ms 5796 KB Output is correct
40 Correct 55 ms 5736 KB Output is correct
41 Correct 55 ms 5876 KB Output is correct
42 Correct 51 ms 5740 KB Output is correct
43 Correct 56 ms 5740 KB Output is correct
44 Correct 57 ms 5736 KB Output is correct
45 Correct 54 ms 5864 KB Output is correct
46 Correct 55 ms 5736 KB Output is correct
47 Correct 49 ms 5740 KB Output is correct
48 Correct 55 ms 5736 KB Output is correct
49 Correct 53 ms 5740 KB Output is correct
50 Correct 55 ms 5776 KB Output is correct
51 Correct 507 ms 18132 KB Output is correct
52 Correct 522 ms 18132 KB Output is correct
53 Correct 600 ms 18004 KB Output is correct
54 Correct 56 ms 5740 KB Output is correct
55 Correct 51 ms 5740 KB Output is correct
56 Correct 159 ms 18528 KB Output is correct
57 Correct 0 ms 384 KB Output is correct
58 Correct 54 ms 5740 KB Output is correct
59 Correct 61 ms 5736 KB Output is correct
60 Correct 613 ms 26740 KB Output is correct
61 Correct 58 ms 5736 KB Output is correct
62 Correct 78 ms 5736 KB Output is correct
63 Correct 58 ms 5736 KB Output is correct
64 Correct 57 ms 5736 KB Output is correct
65 Correct 55 ms 5740 KB Output is correct
66 Correct 54 ms 5736 KB Output is correct
67 Correct 68 ms 5740 KB Output is correct
68 Correct 51 ms 5740 KB Output is correct
69 Correct 56 ms 5736 KB Output is correct
70 Correct 575 ms 26836 KB Output is correct
71 Correct 67 ms 5784 KB Output is correct
72 Correct 516 ms 18008 KB Output is correct
73 Correct 502 ms 18004 KB Output is correct
74 Correct 0 ms 384 KB Output is correct
75 Correct 0 ms 384 KB Output is correct
76 Correct 0 ms 384 KB Output is correct
77 Correct 1 ms 384 KB Output is correct
78 Correct 1 ms 384 KB Output is correct
79 Correct 6 ms 1152 KB Output is correct
80 Correct 589 ms 18132 KB Output is correct
81 Correct 570 ms 18008 KB Output is correct
82 Correct 528 ms 18004 KB Output is correct
83 Correct 559 ms 18176 KB Output is correct
84 Correct 537 ms 18004 KB Output is correct
85 Correct 525 ms 18004 KB Output is correct
86 Correct 170 ms 18528 KB Output is correct
87 Correct 1 ms 384 KB Output is correct