#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define f(i,a,b) for(int i = a; i < b; i++)
const int N = 1e6 + 5;
const ll inf = 1e18 + 5;
int n;
ll l[N], r[N];
ll A, B, S;
void subtask_1(){
set <pair<ll,ll>> s;
f(i,1,n+1){
for(ll j = l[i]; j <= r[i]; j++){
ll a, b;
a = (j + j/B) % A;
b = j % B;
s.insert({a, b});
}
}
cout << s.size() << "\n";
}
void solve(){
ll X = A / __gcd(A, B+1);
ll period = X * B;
set <pair<ll,ll>> s;
f(i,1,n+1){
ll len = r[i] - l[i] + 1;
if(len >= period){
cout << period << "\n";
return;
}
ll x = l[i] % period;
if(len > period-x){
s.insert({x, period-1});
s.insert({0, r[i]%period});
}
else{
s.insert({x, r[i]%period});
}
}
ll ans = 0, l, r;
auto it = s.begin();
l = it->first, r = it->second;
for(auto p: s){
if(p == *it) continue;
ll x = p.first, y = p.second;
if(x <= r){
r = max(r, y);
}
else if(x == r+1){
r = y;
}
else{
ans += r - l + 1;
l = x, r = y;
}
}
ans += r - l + 1;
cout << ans << "\n";
}
int main(){
cin >> n >> A >> B;
f(i,1,n+1){
cin >> l[i] >> r[i];
}
solve();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
304 KB |
Output is correct |
2 |
Correct |
11 ms |
1364 KB |
Output is correct |
3 |
Correct |
17 ms |
1364 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
312 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
308 KB |
Output is correct |
8 |
Correct |
1 ms |
304 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
308 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
16 ms |
1364 KB |
Output is correct |
17 |
Correct |
110 ms |
11848 KB |
Output is correct |
18 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
308 KB |
Output is correct |
3 |
Correct |
1 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Incorrect |
1 ms |
308 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
320 KB |
Output is correct |
3 |
Correct |
2 ms |
340 KB |
Output is correct |
4 |
Correct |
2 ms |
340 KB |
Output is correct |
5 |
Correct |
712 ms |
41092 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1137 ms |
115680 KB |
Output is correct |
3 |
Correct |
1200 ms |
115692 KB |
Output is correct |
4 |
Correct |
1152 ms |
115720 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1137 ms |
115680 KB |
Output is correct |
3 |
Correct |
1200 ms |
115692 KB |
Output is correct |
4 |
Correct |
1152 ms |
115720 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1173 ms |
115720 KB |
Output is correct |
7 |
Correct |
1141 ms |
115696 KB |
Output is correct |
8 |
Correct |
1195 ms |
115752 KB |
Output is correct |
9 |
Correct |
1235 ms |
115728 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1137 ms |
115680 KB |
Output is correct |
3 |
Correct |
1200 ms |
115692 KB |
Output is correct |
4 |
Correct |
1152 ms |
115720 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
124 ms |
11732 KB |
Output is correct |
7 |
Correct |
113 ms |
11776 KB |
Output is correct |
8 |
Correct |
109 ms |
11844 KB |
Output is correct |
9 |
Correct |
109 ms |
11796 KB |
Output is correct |
10 |
Correct |
120 ms |
11824 KB |
Output is correct |
11 |
Correct |
106 ms |
11812 KB |
Output is correct |
12 |
Correct |
121 ms |
11852 KB |
Output is correct |
13 |
Correct |
108 ms |
11836 KB |
Output is correct |
14 |
Correct |
107 ms |
11740 KB |
Output is correct |
15 |
Correct |
110 ms |
11760 KB |
Output is correct |
16 |
Correct |
110 ms |
11776 KB |
Output is correct |
17 |
Correct |
138 ms |
11820 KB |
Output is correct |
18 |
Correct |
1119 ms |
115764 KB |
Output is correct |
19 |
Correct |
1149 ms |
115632 KB |
Output is correct |
20 |
Correct |
1211 ms |
115724 KB |
Output is correct |
21 |
Correct |
134 ms |
11836 KB |
Output is correct |
22 |
Correct |
110 ms |
11796 KB |
Output is correct |
23 |
Correct |
324 ms |
18244 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
109 ms |
11840 KB |
Output is correct |
3 |
Correct |
117 ms |
11744 KB |
Output is correct |
4 |
Correct |
1190 ms |
115756 KB |
Output is correct |
5 |
Correct |
110 ms |
11852 KB |
Output is correct |
6 |
Correct |
115 ms |
11732 KB |
Output is correct |
7 |
Correct |
113 ms |
11784 KB |
Output is correct |
8 |
Correct |
117 ms |
11880 KB |
Output is correct |
9 |
Correct |
109 ms |
11756 KB |
Output is correct |
10 |
Correct |
109 ms |
11764 KB |
Output is correct |
11 |
Correct |
107 ms |
11756 KB |
Output is correct |
12 |
Correct |
108 ms |
11768 KB |
Output is correct |
13 |
Correct |
111 ms |
11780 KB |
Output is correct |
14 |
Correct |
1376 ms |
115744 KB |
Output is correct |
15 |
Correct |
129 ms |
11788 KB |
Output is correct |
16 |
Correct |
1105 ms |
115728 KB |
Output is correct |
17 |
Correct |
1127 ms |
115700 KB |
Output is correct |
18 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
304 KB |
Output is correct |
2 |
Correct |
11 ms |
1364 KB |
Output is correct |
3 |
Correct |
17 ms |
1364 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
312 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
308 KB |
Output is correct |
8 |
Correct |
1 ms |
304 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
0 ms |
308 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
0 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
16 ms |
1364 KB |
Output is correct |
17 |
Correct |
110 ms |
11848 KB |
Output is correct |
18 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |