#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3")
#define tof_io ios_base::sync_with_stdio(false);cin.tie(0) , cout.tie(0);
#define double long double
#define int long long
#define pb push_back
#define all(x) x.begin(),x.end()
#define endl '\n'
#define sz(x) x.size()
//const int mod = 998244353; //998244353 1e9+7 1e9+9
const int N = 5e3 + 23;
const int lg = 23;
const int inf = 2e18;
int fac[N];
int inv[N];
//int dnt_pow (int a, int b, int md = mod){int ans = 1; while(b){if(b&1){ans = (a*ans)%md;}a = (a*a)%md;b >>= 1;}return ans ;}
//void dnt_bld (){fac[0] = 1; inv[0] = dnt_pow(fac[0],mod-2) ;for(int i = 1 ; i < N ; i++) {fac[i] = (fac[i-1] * i) % mod;inv[i] = dnt_pow( fac[i] , mod-2);}}
//int dnt_ncr (int r,int n){if(r>n) return 0; return fac[n] * inv[r] % mod * inv[n-r] % mod;}
void add (set<pair<int, int>>& st, int l, int r)
{
auto it = st.lower_bound({l, 0}), tmp = it;
if (it != st.begin() && (--tmp)->second >= l)
{
l = tmp->first;
r = max(r, tmp->second);
st.erase(tmp);
}
while (it != st.end())
{
if (r >= it->first)
{
r = max(r, it->second);
it = st.erase(it);
}
else break;
}
st.insert({l, r});
}
int32_t main ()
{
int n, a, b;
cin >> n >> a >> b;
int mod;
if (a / __gcd(a, b+1) > inf / b) mod = inf;
else mod = a / __gcd(a, b+1) * b;
set<pair<int, int>> st;
while (n--)
{
int l, r;
cin >> l >> r;
if (r-l+1 >= mod)
{
cout << mod << endl;
return 0;
}
if (l % mod > r % mod)
{
add(st, 0, r % mod);
add(st, l % mod, mod-1);
} else add(st, l % mod, r % mod);
}
int ans = 0;
for (auto e: st)
{
int l = e.first;
int r = e.second;
ans += r-l+1;
}
cout << ans ;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
16 ms |
860 KB |
Output is correct |
3 |
Correct |
11 ms |
832 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
360 KB |
Output is correct |
16 |
Correct |
10 ms |
856 KB |
Output is correct |
17 |
Correct |
108 ms |
6452 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
388 KB |
Output is correct |
4 |
Correct |
0 ms |
344 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
1 ms |
344 KB |
Output is correct |
5 |
Correct |
696 ms |
408 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1151 ms |
62928 KB |
Output is correct |
3 |
Correct |
1134 ms |
62892 KB |
Output is correct |
4 |
Correct |
1249 ms |
100368 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1151 ms |
62928 KB |
Output is correct |
3 |
Correct |
1134 ms |
62892 KB |
Output is correct |
4 |
Correct |
1249 ms |
100368 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1162 ms |
100188 KB |
Output is correct |
7 |
Correct |
1182 ms |
100528 KB |
Output is correct |
8 |
Correct |
1168 ms |
100144 KB |
Output is correct |
9 |
Correct |
1247 ms |
100372 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1151 ms |
62928 KB |
Output is correct |
3 |
Correct |
1134 ms |
62892 KB |
Output is correct |
4 |
Correct |
1249 ms |
100368 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
105 ms |
10280 KB |
Output is correct |
7 |
Correct |
104 ms |
10320 KB |
Output is correct |
8 |
Correct |
106 ms |
10320 KB |
Output is correct |
9 |
Correct |
113 ms |
10284 KB |
Output is correct |
10 |
Correct |
106 ms |
10320 KB |
Output is correct |
11 |
Correct |
105 ms |
10208 KB |
Output is correct |
12 |
Correct |
107 ms |
10380 KB |
Output is correct |
13 |
Correct |
111 ms |
10324 KB |
Output is correct |
14 |
Correct |
107 ms |
10324 KB |
Output is correct |
15 |
Correct |
117 ms |
10324 KB |
Output is correct |
16 |
Correct |
114 ms |
10312 KB |
Output is correct |
17 |
Correct |
109 ms |
10320 KB |
Output is correct |
18 |
Correct |
1159 ms |
99948 KB |
Output is correct |
19 |
Correct |
1176 ms |
100228 KB |
Output is correct |
20 |
Correct |
1184 ms |
100180 KB |
Output is correct |
21 |
Correct |
112 ms |
10324 KB |
Output is correct |
22 |
Correct |
111 ms |
10324 KB |
Output is correct |
23 |
Correct |
323 ms |
12964 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
115 ms |
8484 KB |
Output is correct |
3 |
Correct |
114 ms |
8664 KB |
Output is correct |
4 |
Correct |
1194 ms |
100272 KB |
Output is correct |
5 |
Correct |
114 ms |
10324 KB |
Output is correct |
6 |
Correct |
117 ms |
10320 KB |
Output is correct |
7 |
Correct |
119 ms |
10324 KB |
Output is correct |
8 |
Correct |
122 ms |
10380 KB |
Output is correct |
9 |
Correct |
112 ms |
10356 KB |
Output is correct |
10 |
Correct |
107 ms |
10136 KB |
Output is correct |
11 |
Correct |
108 ms |
10252 KB |
Output is correct |
12 |
Correct |
110 ms |
10360 KB |
Output is correct |
13 |
Correct |
113 ms |
10328 KB |
Output is correct |
14 |
Correct |
1202 ms |
100252 KB |
Output is correct |
15 |
Correct |
106 ms |
9736 KB |
Output is correct |
16 |
Correct |
1141 ms |
100124 KB |
Output is correct |
17 |
Correct |
1139 ms |
100180 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
16 ms |
860 KB |
Output is correct |
3 |
Correct |
11 ms |
832 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
360 KB |
Output is correct |
16 |
Correct |
10 ms |
856 KB |
Output is correct |
17 |
Correct |
108 ms |
6452 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
388 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Correct |
0 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
696 ms |
408 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
1151 ms |
62928 KB |
Output is correct |
31 |
Correct |
1134 ms |
62892 KB |
Output is correct |
32 |
Correct |
1249 ms |
100368 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
1162 ms |
100188 KB |
Output is correct |
35 |
Correct |
1182 ms |
100528 KB |
Output is correct |
36 |
Correct |
1168 ms |
100144 KB |
Output is correct |
37 |
Correct |
1247 ms |
100372 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
105 ms |
10280 KB |
Output is correct |
40 |
Correct |
104 ms |
10320 KB |
Output is correct |
41 |
Correct |
106 ms |
10320 KB |
Output is correct |
42 |
Correct |
113 ms |
10284 KB |
Output is correct |
43 |
Correct |
106 ms |
10320 KB |
Output is correct |
44 |
Correct |
105 ms |
10208 KB |
Output is correct |
45 |
Correct |
107 ms |
10380 KB |
Output is correct |
46 |
Correct |
111 ms |
10324 KB |
Output is correct |
47 |
Correct |
107 ms |
10324 KB |
Output is correct |
48 |
Correct |
117 ms |
10324 KB |
Output is correct |
49 |
Correct |
114 ms |
10312 KB |
Output is correct |
50 |
Correct |
109 ms |
10320 KB |
Output is correct |
51 |
Correct |
1159 ms |
99948 KB |
Output is correct |
52 |
Correct |
1176 ms |
100228 KB |
Output is correct |
53 |
Correct |
1184 ms |
100180 KB |
Output is correct |
54 |
Correct |
112 ms |
10324 KB |
Output is correct |
55 |
Correct |
111 ms |
10324 KB |
Output is correct |
56 |
Correct |
323 ms |
12964 KB |
Output is correct |
57 |
Correct |
0 ms |
344 KB |
Output is correct |
58 |
Correct |
115 ms |
8484 KB |
Output is correct |
59 |
Correct |
114 ms |
8664 KB |
Output is correct |
60 |
Correct |
1194 ms |
100272 KB |
Output is correct |
61 |
Correct |
114 ms |
10324 KB |
Output is correct |
62 |
Correct |
117 ms |
10320 KB |
Output is correct |
63 |
Correct |
119 ms |
10324 KB |
Output is correct |
64 |
Correct |
122 ms |
10380 KB |
Output is correct |
65 |
Correct |
112 ms |
10356 KB |
Output is correct |
66 |
Correct |
107 ms |
10136 KB |
Output is correct |
67 |
Correct |
108 ms |
10252 KB |
Output is correct |
68 |
Correct |
110 ms |
10360 KB |
Output is correct |
69 |
Correct |
113 ms |
10328 KB |
Output is correct |
70 |
Correct |
1202 ms |
100252 KB |
Output is correct |
71 |
Correct |
106 ms |
9736 KB |
Output is correct |
72 |
Correct |
1141 ms |
100124 KB |
Output is correct |
73 |
Correct |
1139 ms |
100180 KB |
Output is correct |
74 |
Correct |
0 ms |
344 KB |
Output is correct |
75 |
Correct |
0 ms |
348 KB |
Output is correct |
76 |
Correct |
0 ms |
348 KB |
Output is correct |
77 |
Correct |
0 ms |
348 KB |
Output is correct |
78 |
Correct |
0 ms |
348 KB |
Output is correct |
79 |
Correct |
11 ms |
1400 KB |
Output is correct |
80 |
Correct |
1207 ms |
100220 KB |
Output is correct |
81 |
Correct |
1172 ms |
100284 KB |
Output is correct |
82 |
Correct |
1206 ms |
100180 KB |
Output is correct |
83 |
Correct |
1219 ms |
100288 KB |
Output is correct |
84 |
Correct |
1310 ms |
100184 KB |
Output is correct |
85 |
Correct |
1241 ms |
100376 KB |
Output is correct |
86 |
Correct |
335 ms |
12880 KB |
Output is correct |
87 |
Correct |
1 ms |
348 KB |
Output is correct |