Submission #782492

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
782492	2023-07-14T03:06:40 Z	devariaota	Strange Device (APIO19_strange_device)	C++17	5 / 100	383 ms	524288 KB

strange_device

#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 >= val) 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	81 ms	107908 KB	Output is correct
3	Correct	62 ms	82928 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	212 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	49 ms	34636 KB	Output is correct
18	Runtime error	182 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	166 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	14 ms	16340 KB	Output is correct
3	Correct	15 ms	16532 KB	Output is correct
4	Correct	11 ms	13824 KB	Output is correct
5	Correct	209 ms	32564 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	275 ms	36564 KB	Output is correct
3	Runtime error	383 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	275 ms	36564 KB	Output is correct
3	Runtime error	383 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	275 ms	36564 KB	Output is correct
3	Runtime error	383 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	1 ms	212 KB	Output is correct
2	Runtime error	184 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	81 ms	107908 KB	Output is correct
3	Correct	62 ms	82928 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	212 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	49 ms	34636 KB	Output is correct
18	Runtime error	182 ms	524288 KB	Execution killed with signal 9
19	Halted	0 ms	0 KB	-

Submission #782492

Compilation message