oj.uz

Submission #413220

# Submission time Handle Problem Language Result Execution time Memory
413220 2021-05-28T11:22:41 Z arayi Strange Device (APIO19_strange_device) C++17
100 / 100
 603 ms 53376 KB 
//Arayi
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <queue>
#include <stack>
#include <algorithm>
#include <math.h>   
#include <vector>
#include <cstring>
#include <ctime>
#include <set>
#include <bitset>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <ctime>
#include <climits>
#include <cassert>
#include <chrono>
#include <random>
#include <complex>

#define fr first
#define sc second
#define MP make_pair
#define ad push_back
#define PB push_back
#define fastio ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define lli long long int
#define y1 arayikhalatyan
#define j1 jigglypuff
#define ld long double
#define itn int
#define pir pair<int, int>
#define all(x) (x).begin(), (x).end()
#define str string
#define enl endl
#define en endl
#define cd complex<long double>
#define vcd vector<cd>
#define vii vector<int>
#define vlli vector<lli>
using namespace std;

lli gcd(lli a, lli b) { return (b == 0LL ? a : gcd(b, a % b)); }
ld dist(ld x, ld y1, ld x2, ld y2)
{
    return sqrt((x - x2) * (x - x2) + (y1 - y2) * (y1 - y2));
}
lli S(lli a)
{
    return (a * (a + 1LL)) / 2;
}
mt19937 rnd(363542);
char vow[] = { 'a', 'e', 'i', 'o', 'u' };
int dx[] = { 0, -1, 0, 1, -1, -1, 1, 1, 0 };
int dy[] = { -1, 0, 1, 0, -1, 1, -1, 1, 0 };


const int N = 1e6 + 30;
const lli mod = 1e9 + 7;
const ld pi = acos(-1);
const int T = 550;

lli bp(lli a, lli b = mod - 2LL)
{
    lli ret = 1;
    while (b)
    {
        if (b & 1) ret *= a, ret %= mod;
        a *= a;
        a %= mod;
        b >>= 1;
    }
    return ret;
}
ostream& operator<<(ostream& c, pir a)
{
    c << a.fr << " " << a.sc;
    return c;
}
template<class T>
void maxi(T& a, T b)
{
    a = max(a, b);
}
template <class T>
void mini(T& a, T b)
{
    a = min(a, b);
}



int n;
lli A, B, x;
int main()
{
    fastio;
    cin >> n >> A >> B;
    x = A / gcd(A, B + 1LL);
    if (x > mod * mod / B) x = 1e18 + 1LL;
    else x *= B;
    vector<pair<lli, lli> > fp;
    //cout << x << endl;
    for (int i = 0; i < n; i++)
    {
        lli l, r;
        cin >> l >> r;
        if (r - l >= x)
        {
            cout << x << endl;
            return 0;
        }
        if (l % x > r % x) fp.ad(MP(l % x, x - 1LL)), fp.ad(MP(0, r % x));
        else fp.ad(MP(l % x, r % x));
    }
    sort(all(fp));
    lli mx = -1, ans = x;
    for (int i = 0; i < fp.size(); i++)
    {
        //cout << fp[i] << endl;
        ans -= max(0LL, fp[i].fr - mx - 1LL);
        maxi(mx, fp[i].sc);
    }
    ans -= max(0LL, x - mx - 1LL);
    cout << ans << endl;
    return 0;
}

/*
* 
    __
  *(><)*
    \/ /
    ||/
  --||
    ||
    /\
   /  \
  /    \

*/

Compilation message

strange_device.cpp: In function 'int main()':
strange_device.cpp:122:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  122 |     for (int i = 0; i < fp.size(); i++)
      |                     ~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 7 ms 1052 KB Output is correct
3 Correct 6 ms 976 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 7 ms 1056 KB Output is correct
17 Correct 70 ms 5632 KB Output is correct
18 Correct 1 ms 204 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #3
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 404 ms 41252 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 510 ms 53280 KB Output is correct
3 Correct 505 ms 53252 KB Output is correct
4 Correct 536 ms 53260 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 510 ms 53280 KB Output is correct
3 Correct 505 ms 53252 KB Output is correct
4 Correct 536 ms 53260 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 528 ms 53264 KB Output is correct
7 Correct 531 ms 53300 KB Output is correct
8 Correct 508 ms 53328 KB Output is correct
9 Correct 527 ms 53276 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 510 ms 53280 KB Output is correct
3 Correct 505 ms 53252 KB Output is correct
4 Correct 536 ms 53260 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 62 ms 5728 KB Output is correct
7 Correct 58 ms 5692 KB Output is correct
8 Correct 51 ms 5652 KB Output is correct
9 Correct 49 ms 5684 KB Output is correct
10 Correct 50 ms 5608 KB Output is correct
11 Correct 56 ms 5732 KB Output is correct
12 Correct 49 ms 5732 KB Output is correct
13 Correct 51 ms 5652 KB Output is correct
14 Correct 47 ms 5688 KB Output is correct
15 Correct 55 ms 5728 KB Output is correct
16 Correct 53 ms 5736 KB Output is correct
17 Correct 49 ms 5696 KB Output is correct
18 Correct 509 ms 53256 KB Output is correct
19 Correct 567 ms 53376 KB Output is correct
20 Correct 582 ms 53376 KB Output is correct
21 Correct 52 ms 5740 KB Output is correct
22 Correct 46 ms 5716 KB Output is correct
23 Correct 164 ms 18444 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 59 ms 5668 KB Output is correct
3 Correct 59 ms 5676 KB Output is correct
4 Correct 571 ms 53260 KB Output is correct
5 Correct 59 ms 5848 KB Output is correct
6 Correct 50 ms 5688 KB Output is correct
7 Correct 51 ms 5672 KB Output is correct
8 Correct 52 ms 5688 KB Output is correct
9 Correct 63 ms 5728 KB Output is correct
10 Correct 66 ms 5688 KB Output is correct
11 Correct 61 ms 5688 KB Output is correct
12 Correct 52 ms 5696 KB Output is correct
13 Correct 62 ms 5668 KB Output is correct
14 Correct 565 ms 53232 KB Output is correct
15 Correct 50 ms 5668 KB Output is correct
16 Correct 500 ms 53264 KB Output is correct
17 Correct 500 ms 53264 KB Output is correct
18 Correct 1 ms 204 KB Output is correct

Subtask #8
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 7 ms 1052 KB Output is correct
3 Correct 6 ms 976 KB Output is correct
4 Correct 1 ms 316 KB Output is correct
5 Correct 1 ms 320 KB Output is correct
6 Correct 1 ms 316 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 324 KB Output is correct
16 Correct 7 ms 1056 KB Output is correct
17 Correct 70 ms 5632 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 324 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 2 ms 340 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 404 ms 41252 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 510 ms 53280 KB Output is correct
31 Correct 505 ms 53252 KB Output is correct
32 Correct 536 ms 53260 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 528 ms 53264 KB Output is correct
35 Correct 531 ms 53300 KB Output is correct
36 Correct 508 ms 53328 KB Output is correct
37 Correct 527 ms 53276 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 62 ms 5728 KB Output is correct
40 Correct 58 ms 5692 KB Output is correct
41 Correct 51 ms 5652 KB Output is correct
42 Correct 49 ms 5684 KB Output is correct
43 Correct 50 ms 5608 KB Output is correct
44 Correct 56 ms 5732 KB Output is correct
45 Correct 49 ms 5732 KB Output is correct
46 Correct 51 ms 5652 KB Output is correct
47 Correct 47 ms 5688 KB Output is correct
48 Correct 55 ms 5728 KB Output is correct
49 Correct 53 ms 5736 KB Output is correct
50 Correct 49 ms 5696 KB Output is correct
51 Correct 509 ms 53256 KB Output is correct
52 Correct 567 ms 53376 KB Output is correct
53 Correct 582 ms 53376 KB Output is correct
54 Correct 52 ms 5740 KB Output is correct
55 Correct 46 ms 5716 KB Output is correct
56 Correct 164 ms 18444 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 59 ms 5668 KB Output is correct
59 Correct 59 ms 5676 KB Output is correct
60 Correct 571 ms 53260 KB Output is correct
61 Correct 59 ms 5848 KB Output is correct
62 Correct 50 ms 5688 KB Output is correct
63 Correct 51 ms 5672 KB Output is correct
64 Correct 52 ms 5688 KB Output is correct
65 Correct 63 ms 5728 KB Output is correct
66 Correct 66 ms 5688 KB Output is correct
67 Correct 61 ms 5688 KB Output is correct
68 Correct 52 ms 5696 KB Output is correct
69 Correct 62 ms 5668 KB Output is correct
70 Correct 565 ms 53232 KB Output is correct
71 Correct 50 ms 5668 KB Output is correct
72 Correct 500 ms 53264 KB Output is correct
73 Correct 500 ms 53264 KB Output is correct
74 Correct 1 ms 204 KB Output is correct
75 Correct 1 ms 204 KB Output is correct
76 Correct 1 ms 204 KB Output is correct
77 Correct 1 ms 204 KB Output is correct
78 Correct 1 ms 204 KB Output is correct
79 Correct 8 ms 972 KB Output is correct
80 Correct 603 ms 53328 KB Output is correct
81 Correct 589 ms 53304 KB Output is correct
82 Correct 530 ms 53308 KB Output is correct
83 Correct 577 ms 53300 KB Output is correct
84 Correct 556 ms 53296 KB Output is correct
85 Correct 532 ms 53324 KB Output is correct
86 Correct 159 ms 18436 KB Output is correct
87 Correct 1 ms 204 KB Output is correct