| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 932227 | 2024-02-23T05:53:02 Z | Baizho | Strange Device (APIO19_strange_device) | C++17 | 427 ms | 18744 KB |
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
// #pragma GCC optimize("Ofast,unroll-loops,fast-math")
// #pragma GCC target("popcnt")
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll,ll> pll;
#define sz size()
#define ff first
#define ss second
#define all(a) a.begin(),a.end()
#define pb push_back
const int mod = ll(1e9)+7; //(b + (a%b)) % b (to mod -1%(10^9+7) correctly in c++ its -1 but its suppose to be 10^9+6
const ll MOD = 998244353; // (a%mod)*(binpow(b,mod-2,mod) = (a/b)%mod
const int N = ll(2e3)+100;
const int M = ll(2e5) + 100;
const long long inf = 5e18;
const long double eps = 1e-15L;
ll lcm(ll a, ll b) { return (a / __gcd(a,b))*b; }
ll binpow(ll a, ll b, ll m) { ll res=1; a %= m; while(b>0){ if(b&1)res=(res * a) % m; a=(a * a) % m; b/=2; } return res%m;}
void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
#define int ll
bool comp(pair<int, int> a, pair<int, int> b) {
if(a.ss == b.ss) return a.ff > b.ff;
return a.ss < b.ss;
}
void Baizho() {
int n, a, b; cin>>n>>a>>b;
int siz = a / __gcd(a, b + 1);
if(siz <= 1LL * 2e18 / b) siz *= b;
else siz = 2e18;
vector<pair<int, int> > range;
while(n --) {
int l, r; cin>>l>>r;
l %= siz; r %= siz;
if(l <= r) {
range.pb({l, r});
} else {
range.pb({0, r});
range.pb({l, siz - 1});
}
}
sort(all(range), comp);
int maxr = -1, ans = 0;
for(auto c : range) {
if(maxr < c.ff) {
// new segment started
ans += c.ss - c.ff + 1;
maxr = c.ss;
} else if(c.ff <= maxr && maxr <= c.ss) {
// not completely new
ans += c.ss - maxr;
maxr = c.ss;
}
}
cout<<ans<<"\n";
}
signed main() {
// Freopen("nondec");
ios_base::sync_with_stdio(false);
cin.tie(0);cout.tie(0);
// precalc();
int ttt = 1;
// cin>>ttt;
for(int i=1; i<=ttt; i++) {Baizho(); }
}
Compilation message
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 344 KB | Output is correct |
| 2 | Incorrect | 5 ms | 736 KB | Output isn't correct |
| 3 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 348 KB | Output is correct |
| 2 | Incorrect | 1 ms | 348 KB | Output isn't correct |
| 3 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 348 KB | Output is correct |
| 2 | Incorrect | 1 ms | 348 KB | Output isn't correct |
| 3 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 504 KB | Output is correct |
| 2 | Correct | 357 ms | 18616 KB | Output is correct |
| 3 | Correct | 349 ms | 17592 KB | Output is correct |
| 4 | Correct | 337 ms | 17192 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 504 KB | Output is correct |
| 2 | Correct | 357 ms | 18616 KB | Output is correct |
| 3 | Correct | 349 ms | 17592 KB | Output is correct |
| 4 | Correct | 337 ms | 17192 KB | Output is correct |
| 5 | Correct | 1 ms | 348 KB | Output is correct |
| 6 | Correct | 373 ms | 18160 KB | Output is correct |
| 7 | Correct | 358 ms | 17672 KB | Output is correct |
| 8 | Correct | 370 ms | 18464 KB | Output is correct |
| 9 | Correct | 417 ms | 17512 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 504 KB | Output is correct |
| 2 | Correct | 357 ms | 18616 KB | Output is correct |
| 3 | Correct | 349 ms | 17592 KB | Output is correct |
| 4 | Correct | 337 ms | 17192 KB | Output is correct |
| 5 | Correct | 1 ms | 500 KB | Output is correct |
| 6 | Correct | 33 ms | 2516 KB | Output is correct |
| 7 | Correct | 38 ms | 2516 KB | Output is correct |
| 8 | Correct | 45 ms | 2632 KB | Output is correct |
| 9 | Correct | 37 ms | 2520 KB | Output is correct |
| 10 | Correct | 35 ms | 2528 KB | Output is correct |
| 11 | Correct | 37 ms | 2572 KB | Output is correct |
| 12 | Correct | 32 ms | 2660 KB | Output is correct |
| 13 | Correct | 37 ms | 2528 KB | Output is correct |
| 14 | Correct | 34 ms | 2520 KB | Output is correct |
| 15 | Incorrect | 39 ms | 2572 KB | Output isn't correct |
| 16 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 348 KB | Output is correct |
| 2 | Correct | 37 ms | 2588 KB | Output is correct |
| 3 | Correct | 36 ms | 2516 KB | Output is correct |
| 4 | Correct | 427 ms | 18360 KB | Output is correct |
| 5 | Correct | 37 ms | 2516 KB | Output is correct |
| 6 | Correct | 40 ms | 2656 KB | Output is correct |
| 7 | Correct | 54 ms | 2620 KB | Output is correct |
| 8 | Correct | 38 ms | 2520 KB | Output is correct |
| 9 | Correct | 51 ms | 2508 KB | Output is correct |
| 10 | Correct | 36 ms | 2520 KB | Output is correct |
| 11 | Correct | 41 ms | 2516 KB | Output is correct |
| 12 | Correct | 35 ms | 2520 KB | Output is correct |
| 13 | Correct | 37 ms | 2516 KB | Output is correct |
| 14 | Incorrect | 399 ms | 18744 KB | Output isn't correct |
| 15 | Halted | 0 ms | 0 KB | - |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 344 KB | Output is correct |
| 2 | Incorrect | 5 ms | 736 KB | Output isn't correct |
| 3 | Halted | 0 ms | 0 KB | - |