#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pdd pair<double, double>
#define vi vector<int>
#define vl vector<ll>
#define ALL(x) x.begin(), x.end()
#define SZ(x) (int)x.size()
#define CASE int t;cin>>t;for(int ca=1;ca<=t;ca++)
#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
using namespace std;
const int MAX = 1 << 20, MOD = 1e9 + 7;
ll l[MAX], r[MAX];
void solve(){
ll n, a, b;
cin >> n >> a >> b;
for(int i = 1;i <= n;i++){
cin >> l[i] >> r[i];
}
ll mod;
if(a == b + 1)
mod = b;
else{
if((__int128_t)a * b >= 1000000000000000000){
ll ans = 0;
for(int i = 1;i <= n;i++)
ans += r[i] - l[i] + 1;
cout << ans << '\n';
return;
}
mod = a * b;
}
map<ll, int> mp;
for(int i = 1;i <= n;i++){
if(r[i] - l[i] + 1 >= mod){
cout << mod << '\n';
return;
}
l[i] %= mod;
r[i] %= mod;
if(l[i] <= r[i]){
mp[l[i]]++;
mp[r[i] + 1]--;
}else{
mp[0]++;
mp[r[i] + 1]--;
mp[l[i]]++;
mp[mod]--;
}
}
ll lt = 0, now = 0, ans = 0;
for(auto i : mp){
if(now > 0)
ans += i.F - lt;
now += i.S;
lt = i.F;
}
cout << ans << '\n';
}
int main(){
IOS
solve();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
8 ms |
1492 KB |
Output is correct |
3 |
Correct |
7 ms |
1484 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
320 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
305 ms |
41072 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
698 ms |
115588 KB |
Output is correct |
3 |
Incorrect |
799 ms |
115600 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
698 ms |
115588 KB |
Output is correct |
3 |
Incorrect |
799 ms |
115600 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
698 ms |
115588 KB |
Output is correct |
3 |
Incorrect |
799 ms |
115600 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
84 ms |
11768 KB |
Output is correct |
3 |
Correct |
67 ms |
11836 KB |
Output is correct |
4 |
Correct |
769 ms |
115592 KB |
Output is correct |
5 |
Correct |
66 ms |
12040 KB |
Output is correct |
6 |
Correct |
75 ms |
11916 KB |
Output is correct |
7 |
Correct |
101 ms |
11816 KB |
Output is correct |
8 |
Correct |
64 ms |
11852 KB |
Output is correct |
9 |
Correct |
64 ms |
11844 KB |
Output is correct |
10 |
Correct |
60 ms |
11808 KB |
Output is correct |
11 |
Correct |
73 ms |
11828 KB |
Output is correct |
12 |
Correct |
60 ms |
11792 KB |
Output is correct |
13 |
Correct |
66 ms |
11852 KB |
Output is correct |
14 |
Correct |
753 ms |
115656 KB |
Output is correct |
15 |
Incorrect |
72 ms |
11852 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
8 ms |
1492 KB |
Output is correct |
3 |
Correct |
7 ms |
1484 KB |
Output is correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |