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Submission #941142

# Submission time Handle Problem Language Result Execution time Memory
941142 2024-03-08T07:59:32 Z adhityamv Strange Device (APIO19_strange_device) C++17
100 / 100
 1025 ms 163680 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define mp make_pair
#define pii pair<int,int>
#define fi first
#define se second
const int INF=1000000000000000000;
int gcd(int a,int b){
    if(b==0 || a==0) return a+b;
    if(a<b) swap(a,b);
    return gcd(b,a%b);
}
void solve(){
    int n,a,b;
    cin >> n >> a >> b;
    int bp=a/gcd(a,b+1LL);
    int p;
    if(bp>INF/b){
        p=INF;
    } else p=(bp*b);
    vector<pii> ranges;
    for(int i=0;i<n;i++){
        int l,r;
        cin >> l >> r;
        ranges.push_back(mp(l,r));
    }
    set<int> imppts;
    imppts.insert(0);
    imppts.insert(p);
    map<int,int> cnt;
    for(auto [l,r]:ranges){
        if(r-l+1LL>=p){
            cout << p << "\n";
            return;
        }
        r%=p;
        l%=p;
        imppts.insert(l);
        imppts.insert(r+1);
        cnt[l]++;
        cnt[r+1]--;
        if(l>r){
            cnt[0]++;
            cnt[p]--;
        }
    }
    int ccnt=0;
    int prev=0;
    int ans=0;
    for(int i:imppts){
        if(ccnt>0) ans+=(i-prev);
        ccnt+=cnt[i];
        prev=i;
    }
    cout << ans;
}
signed main(){
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int t;
    t=1;
    //cin >> t;
    while(t--) solve();
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 7 ms 1992 KB Output is correct
3 Correct 7 ms 2012 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 7 ms 2132 KB Output is correct
17 Correct 76 ms 16720 KB Output is correct
18 Correct 0 ms 356 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 512 KB Output is correct
3 Correct 4 ms 604 KB Output is correct
4 Correct 1 ms 604 KB Output is correct
5 Correct 281 ms 41384 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 807 ms 163300 KB Output is correct
3 Correct 843 ms 162728 KB Output is correct
4 Correct 919 ms 162732 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 807 ms 163300 KB Output is correct
3 Correct 843 ms 162728 KB Output is correct
4 Correct 919 ms 162732 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 832 ms 163052 KB Output is correct
7 Correct 867 ms 162708 KB Output is correct
8 Correct 816 ms 162728 KB Output is correct
9 Correct 993 ms 162796 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 807 ms 163300 KB Output is correct
3 Correct 843 ms 162728 KB Output is correct
4 Correct 919 ms 162732 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 66 ms 16608 KB Output is correct
7 Correct 69 ms 16840 KB Output is correct
8 Correct 65 ms 16584 KB Output is correct
9 Correct 71 ms 16584 KB Output is correct
10 Correct 65 ms 16588 KB Output is correct
11 Correct 64 ms 16708 KB Output is correct
12 Correct 71 ms 16848 KB Output is correct
13 Correct 74 ms 16640 KB Output is correct
14 Correct 66 ms 16480 KB Output is correct
15 Correct 82 ms 16584 KB Output is correct
16 Correct 87 ms 16580 KB Output is correct
17 Correct 70 ms 16588 KB Output is correct
18 Correct 849 ms 163680 KB Output is correct
19 Correct 905 ms 162884 KB Output is correct
20 Correct 941 ms 163016 KB Output is correct
21 Correct 68 ms 16580 KB Output is correct
22 Correct 72 ms 16680 KB Output is correct
23 Correct 90 ms 19892 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 81 ms 16584 KB Output is correct
3 Correct 81 ms 16592 KB Output is correct
4 Correct 936 ms 163244 KB Output is correct
5 Correct 83 ms 16584 KB Output is correct
6 Correct 80 ms 16584 KB Output is correct
7 Correct 85 ms 16580 KB Output is correct
8 Correct 80 ms 16584 KB Output is correct
9 Correct 80 ms 16580 KB Output is correct
10 Correct 70 ms 16536 KB Output is correct
11 Correct 73 ms 16580 KB Output is correct
12 Correct 73 ms 16664 KB Output is correct
13 Correct 82 ms 16584 KB Output is correct
14 Correct 990 ms 162568 KB Output is correct
15 Correct 68 ms 16584 KB Output is correct
16 Correct 857 ms 162868 KB Output is correct
17 Correct 809 ms 162972 KB Output is correct
18 Correct 0 ms 348 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 7 ms 1992 KB Output is correct
3 Correct 7 ms 2012 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 512 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 7 ms 2132 KB Output is correct
17 Correct 76 ms 16720 KB Output is correct
18 Correct 0 ms 356 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 512 KB Output is correct
26 Correct 4 ms 604 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 281 ms 41384 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 807 ms 163300 KB Output is correct
31 Correct 843 ms 162728 KB Output is correct
32 Correct 919 ms 162732 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 832 ms 163052 KB Output is correct
35 Correct 867 ms 162708 KB Output is correct
36 Correct 816 ms 162728 KB Output is correct
37 Correct 993 ms 162796 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 66 ms 16608 KB Output is correct
40 Correct 69 ms 16840 KB Output is correct
41 Correct 65 ms 16584 KB Output is correct
42 Correct 71 ms 16584 KB Output is correct
43 Correct 65 ms 16588 KB Output is correct
44 Correct 64 ms 16708 KB Output is correct
45 Correct 71 ms 16848 KB Output is correct
46 Correct 74 ms 16640 KB Output is correct
47 Correct 66 ms 16480 KB Output is correct
48 Correct 82 ms 16584 KB Output is correct
49 Correct 87 ms 16580 KB Output is correct
50 Correct 70 ms 16588 KB Output is correct
51 Correct 849 ms 163680 KB Output is correct
52 Correct 905 ms 162884 KB Output is correct
53 Correct 941 ms 163016 KB Output is correct
54 Correct 68 ms 16580 KB Output is correct
55 Correct 72 ms 16680 KB Output is correct
56 Correct 90 ms 19892 KB Output is correct
57 Correct 0 ms 344 KB Output is correct
58 Correct 81 ms 16584 KB Output is correct
59 Correct 81 ms 16592 KB Output is correct
60 Correct 936 ms 163244 KB Output is correct
61 Correct 83 ms 16584 KB Output is correct
62 Correct 80 ms 16584 KB Output is correct
63 Correct 85 ms 16580 KB Output is correct
64 Correct 80 ms 16584 KB Output is correct
65 Correct 80 ms 16580 KB Output is correct
66 Correct 70 ms 16536 KB Output is correct
67 Correct 73 ms 16580 KB Output is correct
68 Correct 73 ms 16664 KB Output is correct
69 Correct 82 ms 16584 KB Output is correct
70 Correct 990 ms 162568 KB Output is correct
71 Correct 68 ms 16584 KB Output is correct
72 Correct 857 ms 162868 KB Output is correct
73 Correct 809 ms 162972 KB Output is correct
74 Correct 0 ms 348 KB Output is correct
75 Correct 0 ms 348 KB Output is correct
76 Correct 0 ms 460 KB Output is correct
77 Correct 0 ms 348 KB Output is correct
78 Correct 0 ms 348 KB Output is correct
79 Correct 8 ms 1920 KB Output is correct
80 Correct 927 ms 162736 KB Output is correct
81 Correct 912 ms 163508 KB Output is correct
82 Correct 1025 ms 162736 KB Output is correct
83 Correct 1012 ms 162568 KB Output is correct
84 Correct 1012 ms 163560 KB Output is correct
85 Correct 926 ms 162732 KB Output is correct
86 Correct 90 ms 20268 KB Output is correct
87 Correct 0 ms 348 KB Output is correct