oj.uz

Submission #782489

# Submission time Handle Problem Language Result Execution time Memory
782489 2023-07-14T03:05:18 Z kebine Strange Device (APIO19_strange_device) C++17
5 / 100
 413 ms 524288 KB 
#include <bits/stdc++.h>
using namespace std;

# define int long long
# define fir first
# define sec second
# define pb push_back

const int cnst = 2e5+5;
bool mutipletestcase = 0;
//bool debug = false;

int gcd(int a, int b) {return b ? gcd(b, a%b): a;}
int lcm(int a, int b) {return a/gcd(a, b+1)*b;}


void solve() {
    int n, a, b; cin >> n >> a >> b;

    pair<int, int> num[n+5];

    for(int i = 1; i<=n; i++) {
        int x, y; cin >> x >> y;
        num[i] = {x, y};
    }

    int val = lcm(a, b);
    
    int ans = 0;
    int get[val*2+5];
    memset(get, 0, sizeof(get));

    for(int i = 1; i<=n; i++) {
        int x, y; x = num[i].fir, y = num[i].sec;
        int len = y-x+1;
        if(len >= a*b) ans = val;
        x %= val;
        y %= val;
        if(!y) y += val;
        if(!x) x += val;
        if(y < x) y += val;
        // cerr << x << " " << y << endl;
        get[x]+=1, get[y+1] -= 1;
    }

    if(ans == val) cout << ans << endl;
    else {
        bool yes[val+5];
        memset(yes, 0, sizeof(yes));

        for(int i = 1; i<=2*val; i++) {
            get[i] += get[i-1];
            // cerr << i << " " << get[i] << " " << endl;
            // if(get[i]) cerr << i << " ";
            if(get[i]) yes[i%val] = 1;
        }
        for(int i = 0; i<=val; i++) {
            if(yes[i]) ans++;
        }

        cout << ans << endl;
    }
}

signed main() {
    ios_base::sync_with_stdio(false);
    int t = 1;
    if(mutipletestcase) cin >> t; 
    while(t--) solve();
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 83 ms 107876 KB Output is correct
3 Correct 68 ms 82820 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 224 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 2 ms 2260 KB Output is correct
16 Correct 5 ms 3540 KB Output is correct
17 Correct 54 ms 34696 KB Output is correct
18 Runtime error 280 ms 524288 KB Execution killed with signal 9
19 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Runtime error 230 ms 524288 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 16 ms 16368 KB Output is correct
3 Correct 14 ms 16592 KB Output is correct
4 Correct 12 ms 13852 KB Output is correct
5 Correct 209 ms 32636 KB Output is correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 300 ms 36560 KB Output is correct
3 Runtime error 413 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 300 ms 36560 KB Output is correct
3 Runtime error 413 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 300 ms 36560 KB Output is correct
3 Runtime error 413 ms 524288 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Runtime error 201 ms 524288 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #8
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 83 ms 107876 KB Output is correct
3 Correct 68 ms 82820 KB Output is correct
4 Correct 1 ms 596 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 224 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 2 ms 2260 KB Output is correct
16 Correct 5 ms 3540 KB Output is correct
17 Correct 54 ms 34696 KB Output is correct
18 Runtime error 280 ms 524288 KB Execution killed with signal 9
19 Halted 0 ms 0 KB -