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Submission #217933

# Submission time Handle Problem Language Result Execution time Memory
217933 2020-03-31T08:37:39 Z Autoratch Strange Device (APIO19_strange_device) C++14
100 / 100
 1540 ms 178740 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 2e6 + 10;

int n;
long long a,b;
map<long long,int> ma;
set<long long> s;
int res[N];
vector<pair<long long,long long> > in;
long long rng[N],ans;

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);

    cin >> n >> a >> b;
    a/=__gcd(a,b+1);
    if(a>1e18/b) a = (1e18+2),b = 1;
    for(int i = 0;i < n;i++)
    {
        long long x,y;
        cin >> x >> y; 
        if(y-x+1LL>=a*b){ cout << a*b; return 0; }
        y++;
        x%=(a*b),y%=(a*b); 
        if(y<x) in.push_back({0LL,y}),in.push_back({x,a*b});
        else in.push_back({x,y});
        s.insert(x),s.insert(y);
    }
    s.insert(0),s.insert(a*b);
    long long prev = 0;
    int id = 0;
    for(auto x : s) ma[x] = ++id,rng[id-1] = x-prev,prev = x;
    for(auto x : in) res[ma[x.first]]++,res[ma[x.second]]--;
    for(int i = 1;i < N;i++) res[i]+=res[i-1];
    for(int i = 1;i < N;i++) if(res[i]) ans+=rng[i];
    cout << ans;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 26 ms 9980 KB Output is correct
3 Correct 27 ms 9972 KB Output is correct
4 Correct 15 ms 8192 KB Output is correct
5 Correct 15 ms 8192 KB Output is correct
6 Correct 15 ms 8192 KB Output is correct
7 Correct 15 ms 8192 KB Output is correct
8 Correct 17 ms 8192 KB Output is correct
9 Correct 15 ms 8192 KB Output is correct
10 Correct 15 ms 8192 KB Output is correct
11 Correct 15 ms 8192 KB Output is correct
12 Correct 15 ms 8192 KB Output is correct
13 Correct 15 ms 8192 KB Output is correct
14 Correct 15 ms 8192 KB Output is correct
15 Correct 16 ms 8192 KB Output is correct
16 Correct 26 ms 9952 KB Output is correct
17 Correct 138 ms 25188 KB Output is correct
18 Correct 15 ms 8192 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 16 ms 8192 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 15 ms 8192 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 16 ms 8448 KB Output is correct
3 Correct 17 ms 8320 KB Output is correct
4 Correct 17 ms 8448 KB Output is correct
5 Correct 388 ms 25028 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 1338 ms 141568 KB Output is correct
3 Correct 1340 ms 141700 KB Output is correct
4 Correct 1451 ms 178572 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 1338 ms 141568 KB Output is correct
3 Correct 1340 ms 141700 KB Output is correct
4 Correct 1451 ms 178572 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 1445 ms 178684 KB Output is correct
7 Correct 1389 ms 178604 KB Output is correct
8 Correct 1372 ms 178476 KB Output is correct
9 Correct 1492 ms 178540 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 1338 ms 141568 KB Output is correct
3 Correct 1340 ms 141700 KB Output is correct
4 Correct 1451 ms 178572 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 134 ms 25188 KB Output is correct
7 Correct 131 ms 25320 KB Output is correct
8 Correct 133 ms 25256 KB Output is correct
9 Correct 143 ms 25328 KB Output is correct
10 Correct 139 ms 25188 KB Output is correct
11 Correct 135 ms 25240 KB Output is correct
12 Correct 128 ms 25188 KB Output is correct
13 Correct 146 ms 25296 KB Output is correct
14 Correct 129 ms 25188 KB Output is correct
15 Correct 152 ms 25188 KB Output is correct
16 Correct 137 ms 25188 KB Output is correct
17 Correct 135 ms 25188 KB Output is correct
18 Correct 1378 ms 178412 KB Output is correct
19 Correct 1399 ms 178740 KB Output is correct
20 Correct 1438 ms 178596 KB Output is correct
21 Correct 134 ms 25444 KB Output is correct
22 Correct 158 ms 25192 KB Output is correct
23 Correct 184 ms 26232 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 148 ms 25268 KB Output is correct
3 Correct 137 ms 25188 KB Output is correct
4 Correct 1393 ms 141884 KB Output is correct
5 Correct 142 ms 25320 KB Output is correct
6 Correct 148 ms 25192 KB Output is correct
7 Correct 137 ms 25188 KB Output is correct
8 Correct 143 ms 25188 KB Output is correct
9 Correct 141 ms 25404 KB Output is correct
10 Correct 140 ms 25188 KB Output is correct
11 Correct 134 ms 25188 KB Output is correct
12 Correct 144 ms 25188 KB Output is correct
13 Correct 142 ms 25228 KB Output is correct
14 Correct 1400 ms 142012 KB Output is correct
15 Correct 133 ms 25212 KB Output is correct
16 Correct 1332 ms 178460 KB Output is correct
17 Correct 1363 ms 178596 KB Output is correct
18 Correct 22 ms 8192 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 26 ms 9980 KB Output is correct
3 Correct 27 ms 9972 KB Output is correct
4 Correct 15 ms 8192 KB Output is correct
5 Correct 15 ms 8192 KB Output is correct
6 Correct 15 ms 8192 KB Output is correct
7 Correct 15 ms 8192 KB Output is correct
8 Correct 17 ms 8192 KB Output is correct
9 Correct 15 ms 8192 KB Output is correct
10 Correct 15 ms 8192 KB Output is correct
11 Correct 15 ms 8192 KB Output is correct
12 Correct 15 ms 8192 KB Output is correct
13 Correct 15 ms 8192 KB Output is correct
14 Correct 15 ms 8192 KB Output is correct
15 Correct 16 ms 8192 KB Output is correct
16 Correct 26 ms 9952 KB Output is correct
17 Correct 138 ms 25188 KB Output is correct
18 Correct 15 ms 8192 KB Output is correct
19 Correct 4 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 16 ms 8192 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 15 ms 8192 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 16 ms 8448 KB Output is correct
26 Correct 17 ms 8320 KB Output is correct
27 Correct 17 ms 8448 KB Output is correct
28 Correct 388 ms 25028 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 1338 ms 141568 KB Output is correct
31 Correct 1340 ms 141700 KB Output is correct
32 Correct 1451 ms 178572 KB Output is correct
33 Correct 4 ms 384 KB Output is correct
34 Correct 1445 ms 178684 KB Output is correct
35 Correct 1389 ms 178604 KB Output is correct
36 Correct 1372 ms 178476 KB Output is correct
37 Correct 1492 ms 178540 KB Output is correct
38 Correct 5 ms 384 KB Output is correct
39 Correct 134 ms 25188 KB Output is correct
40 Correct 131 ms 25320 KB Output is correct
41 Correct 133 ms 25256 KB Output is correct
42 Correct 143 ms 25328 KB Output is correct
43 Correct 139 ms 25188 KB Output is correct
44 Correct 135 ms 25240 KB Output is correct
45 Correct 128 ms 25188 KB Output is correct
46 Correct 146 ms 25296 KB Output is correct
47 Correct 129 ms 25188 KB Output is correct
48 Correct 152 ms 25188 KB Output is correct
49 Correct 137 ms 25188 KB Output is correct
50 Correct 135 ms 25188 KB Output is correct
51 Correct 1378 ms 178412 KB Output is correct
52 Correct 1399 ms 178740 KB Output is correct
53 Correct 1438 ms 178596 KB Output is correct
54 Correct 134 ms 25444 KB Output is correct
55 Correct 158 ms 25192 KB Output is correct
56 Correct 184 ms 26232 KB Output is correct
57 Correct 5 ms 384 KB Output is correct
58 Correct 148 ms 25268 KB Output is correct
59 Correct 137 ms 25188 KB Output is correct
60 Correct 1393 ms 141884 KB Output is correct
61 Correct 142 ms 25320 KB Output is correct
62 Correct 148 ms 25192 KB Output is correct
63 Correct 137 ms 25188 KB Output is correct
64 Correct 143 ms 25188 KB Output is correct
65 Correct 141 ms 25404 KB Output is correct
66 Correct 140 ms 25188 KB Output is correct
67 Correct 134 ms 25188 KB Output is correct
68 Correct 144 ms 25188 KB Output is correct
69 Correct 142 ms 25228 KB Output is correct
70 Correct 1400 ms 142012 KB Output is correct
71 Correct 133 ms 25212 KB Output is correct
72 Correct 1332 ms 178460 KB Output is correct
73 Correct 1363 ms 178596 KB Output is correct
74 Correct 22 ms 8192 KB Output is correct
75 Correct 5 ms 384 KB Output is correct
76 Correct 16 ms 8192 KB Output is correct
77 Correct 15 ms 8192 KB Output is correct
78 Correct 15 ms 8192 KB Output is correct
79 Correct 34 ms 9972 KB Output is correct
80 Correct 1540 ms 178188 KB Output is correct
81 Correct 1498 ms 178488 KB Output is correct
82 Correct 1518 ms 178428 KB Output is correct
83 Correct 1518 ms 178388 KB Output is correct
84 Correct 1533 ms 178424 KB Output is correct
85 Correct 1452 ms 178184 KB Output is correct
86 Correct 189 ms 26196 KB Output is correct
87 Correct 19 ms 8192 KB Output is correct