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Submission #712888

# Submission time Handle Problem Language Result Execution time Memory
712888 2023-03-20T10:21:50 Z HuyQuang_re_Zero Strange Device (APIO19_strange_device) C++14
100 / 100
 586 ms 68956 KB 
#include <bits/stdc++.h>
#define ll long long
#define db long double
#define N 4000002
#define II pair <ll,ll>
#define fst first
#define snd second
using namespace std;
ll n,a,b,l,r,m,i,x;
II c[N];
void add(ll l,ll r) { c[++m]={ l,1 }; c[++m]={ r,-1 }; }
const ll oo=round(1e18);
ll cal()
{
    ll bb=(b%a+1)%a,x=a/__gcd(bb,a);
    if(x>oo/b) return oo+1;
    return x*b;
}
int main()
{
  //  freopen("ntu.inp","r",stdin);
    //freopen("ntu.out","w",stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin>>n>>a>>b;
    x=cal();
    for(i=1;i<=n;i++)
    {
        cin>>l>>r;
        if(r-l+1>=x) { cout<<x; return 0; }
        l=l%x; r=r%x;
        if(l<=r) add(l,r);
        else add(l,x-1),add(0,r);
    }
    sort(c+1,c+m+1);
    c[0]={ -1,1 };
    ll cnt=0,res=0;
    for(i=1;i<=m;i++)
    {
        if(c[i].fst>c[i-1].fst)
        {
            if(cnt>0) res+=c[i].fst-c[i-1].fst;
            else res++;
        }
        cnt+=c[i].snd;
    }
    cout<<res;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 324 KB Output is correct
2 Correct 5 ms 980 KB Output is correct
3 Correct 6 ms 980 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 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 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 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 6 ms 980 KB Output is correct
17 Correct 57 ms 7140 KB Output is correct
18 Correct 1 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 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 326 ms 56824 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 463 ms 47212 KB Output is correct
3 Correct 489 ms 47188 KB Output is correct
4 Correct 455 ms 68836 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 463 ms 47212 KB Output is correct
3 Correct 489 ms 47188 KB Output is correct
4 Correct 455 ms 68836 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 469 ms 68812 KB Output is correct
7 Correct 461 ms 68832 KB Output is correct
8 Correct 476 ms 68940 KB Output is correct
9 Correct 544 ms 68820 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 463 ms 47212 KB Output is correct
3 Correct 489 ms 47188 KB Output is correct
4 Correct 455 ms 68836 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 48 ms 7160 KB Output is correct
7 Correct 46 ms 7132 KB Output is correct
8 Correct 45 ms 7248 KB Output is correct
9 Correct 47 ms 7048 KB Output is correct
10 Correct 46 ms 7096 KB Output is correct
11 Correct 48 ms 7124 KB Output is correct
12 Correct 44 ms 7244 KB Output is correct
13 Correct 49 ms 7148 KB Output is correct
14 Correct 44 ms 7120 KB Output is correct
15 Correct 50 ms 7104 KB Output is correct
16 Correct 51 ms 7104 KB Output is correct
17 Correct 44 ms 7108 KB Output is correct
18 Correct 474 ms 68812 KB Output is correct
19 Correct 449 ms 68812 KB Output is correct
20 Correct 550 ms 68812 KB Output is correct
21 Correct 53 ms 7104 KB Output is correct
22 Correct 40 ms 7076 KB Output is correct
23 Correct 130 ms 23632 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 57 ms 7152 KB Output is correct
3 Correct 56 ms 7124 KB Output is correct
4 Correct 584 ms 47276 KB Output is correct
5 Correct 50 ms 7084 KB Output is correct
6 Correct 60 ms 7244 KB Output is correct
7 Correct 51 ms 7152 KB Output is correct
8 Correct 52 ms 7104 KB Output is correct
9 Correct 49 ms 7032 KB Output is correct
10 Correct 53 ms 7092 KB Output is correct
11 Correct 51 ms 7056 KB Output is correct
12 Correct 46 ms 7116 KB Output is correct
13 Correct 51 ms 7116 KB Output is correct
14 Correct 540 ms 47192 KB Output is correct
15 Correct 54 ms 7116 KB Output is correct
16 Correct 449 ms 68956 KB Output is correct
17 Correct 466 ms 68932 KB Output is correct
18 Correct 0 ms 212 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 324 KB Output is correct
2 Correct 5 ms 980 KB Output is correct
3 Correct 6 ms 980 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 340 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 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 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 6 ms 980 KB Output is correct
17 Correct 57 ms 7140 KB Output is correct
18 Correct 1 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 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 1 ms 344 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 326 ms 56824 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 463 ms 47212 KB Output is correct
31 Correct 489 ms 47188 KB Output is correct
32 Correct 455 ms 68836 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 469 ms 68812 KB Output is correct
35 Correct 461 ms 68832 KB Output is correct
36 Correct 476 ms 68940 KB Output is correct
37 Correct 544 ms 68820 KB Output is correct
38 Correct 0 ms 212 KB Output is correct
39 Correct 48 ms 7160 KB Output is correct
40 Correct 46 ms 7132 KB Output is correct
41 Correct 45 ms 7248 KB Output is correct
42 Correct 47 ms 7048 KB Output is correct
43 Correct 46 ms 7096 KB Output is correct
44 Correct 48 ms 7124 KB Output is correct
45 Correct 44 ms 7244 KB Output is correct
46 Correct 49 ms 7148 KB Output is correct
47 Correct 44 ms 7120 KB Output is correct
48 Correct 50 ms 7104 KB Output is correct
49 Correct 51 ms 7104 KB Output is correct
50 Correct 44 ms 7108 KB Output is correct
51 Correct 474 ms 68812 KB Output is correct
52 Correct 449 ms 68812 KB Output is correct
53 Correct 550 ms 68812 KB Output is correct
54 Correct 53 ms 7104 KB Output is correct
55 Correct 40 ms 7076 KB Output is correct
56 Correct 130 ms 23632 KB Output is correct
57 Correct 1 ms 212 KB Output is correct
58 Correct 57 ms 7152 KB Output is correct
59 Correct 56 ms 7124 KB Output is correct
60 Correct 584 ms 47276 KB Output is correct
61 Correct 50 ms 7084 KB Output is correct
62 Correct 60 ms 7244 KB Output is correct
63 Correct 51 ms 7152 KB Output is correct
64 Correct 52 ms 7104 KB Output is correct
65 Correct 49 ms 7032 KB Output is correct
66 Correct 53 ms 7092 KB Output is correct
67 Correct 51 ms 7056 KB Output is correct
68 Correct 46 ms 7116 KB Output is correct
69 Correct 51 ms 7116 KB Output is correct
70 Correct 540 ms 47192 KB Output is correct
71 Correct 54 ms 7116 KB Output is correct
72 Correct 449 ms 68956 KB Output is correct
73 Correct 466 ms 68932 KB Output is correct
74 Correct 0 ms 212 KB Output is correct
75 Correct 1 ms 212 KB Output is correct
76 Correct 0 ms 212 KB Output is correct
77 Correct 1 ms 212 KB Output is correct
78 Correct 1 ms 212 KB Output is correct
79 Correct 4 ms 920 KB Output is correct
80 Correct 580 ms 68900 KB Output is correct
81 Correct 586 ms 68912 KB Output is correct
82 Correct 555 ms 68916 KB Output is correct
83 Correct 561 ms 68812 KB Output is correct
84 Correct 552 ms 68888 KB Output is correct
85 Correct 541 ms 68768 KB Output is correct
86 Correct 129 ms 23480 KB Output is correct
87 Correct 0 ms 212 KB Output is correct