#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#define str string
#define append push_back
#define vector deque
#define vi vector<int>
#define int long long
#define yes cout<<"YES"<<endl;
#define no cout<<"NO"<<endl;
#define endl '\n'
#define all(ls) ls.begin(),ls.end()
#define sorted(ls) sort(ls.begin(),ls.end());
#define reversed(ls) reverse(ls.begin(),ls.end());
#define print(n) for(auto i:n)cout<<i<<' ';cout<<endl;
#define input(n,ls,m) deque<n>ls(m);for(int i=0;i<m;i++)cin>>ls[i];
#define len(s) s.size()
#define ff first
#define ss second
#define N (int const) 3e5+1
#define pii pair<int,int>
#define SQ(x) ((x)*(x))
#define float double
int mod=1e9+7;
int mod1=998244353;
int sum_(vector<int>ls){int s=0;for(auto i:ls){s+=i;}return s;}
int min(int a,int b){if (a>b){return b;}return a;}
int max(int a,int b){if (a<b){return b;}return a;}
//......................................tHe ReaL cOdE beGinS HerE....................................../
int solve2(vector<pii> ls,int a,int b){
map<pair<int,int>,bool>m;
for(auto i:ls){
for(int j=i.ff;j<=i.ss;j++){
m[{(j+j/b)%a,j%b}]=1;
}
}
return len(m);
}
void solve(){
int n,a,b;
cin>>n>>a>>b;
vector<pii>ls;
int cnt=0;
for(int i=0;i<n;i++){
int x,y;
cin>>x>>y;
cnt+=y-x+1;
ls.append({x,y});
}
if(cnt<=1e6){cout<<solve2(ls,a,b)<<endl;return;}
a/=gcd(a,b+1);
a*=b;
for(auto i:ls){
if(i.ss-i.ff+1>=a){
cout<<a<<endl;return;
}
}
vector<pii>q;
for(auto i:ls){
int f=i.ff%a,s=i.ss%a;
if(f<s or i.ff==i.ss) q.append({f,s});
else{
q.append({f,a-1});
q.append({0,s});
}
}
sorted(q);
int ans=a-q[0].ff;
int maxi=q[0].ss;
for(int i=1;i<q.size();i++){
if(q[i-1].ss<q[i].ff){
ans-=q[i].ff-q[i-1].ss-1;
}
maxi=max(maxi,q[i].ss);
}
cout<<ans-(a-maxi-1)<<endl;
}
signed main(){
int t=1;
// cin>>t;
while(t--)
solve();
}
Compilation message
strange_device.cpp: In function 'void solve()':
strange_device.cpp:95:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::deque<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
95 | for(int i=1;i<q.size();i++){
| ~^~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
45 ms |
12724 KB |
Output is correct |
3 |
Correct |
70 ms |
18480 KB |
Output is correct |
4 |
Correct |
2 ms |
860 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
6 ms |
1116 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 |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
33 ms |
7052 KB |
Output is correct |
16 |
Correct |
29 ms |
7004 KB |
Output is correct |
17 |
Correct |
119 ms |
10004 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 |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
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 |
123 ms |
32172 KB |
Output is correct |
3 |
Correct |
177 ms |
32336 KB |
Output is correct |
4 |
Correct |
112 ms |
30628 KB |
Output is correct |
5 |
Correct |
750 ms |
33396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1024 ms |
33296 KB |
Output is correct |
3 |
Correct |
1061 ms |
33232 KB |
Output is correct |
4 |
Correct |
1048 ms |
33264 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1024 ms |
33296 KB |
Output is correct |
3 |
Correct |
1061 ms |
33232 KB |
Output is correct |
4 |
Correct |
1048 ms |
33264 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
1038 ms |
33084 KB |
Output is correct |
7 |
Correct |
1069 ms |
32992 KB |
Output is correct |
8 |
Correct |
1278 ms |
33040 KB |
Output is correct |
9 |
Correct |
1074 ms |
33296 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
1024 ms |
33296 KB |
Output is correct |
3 |
Correct |
1061 ms |
33232 KB |
Output is correct |
4 |
Correct |
1048 ms |
33264 KB |
Output is correct |
5 |
Correct |
0 ms |
344 KB |
Output is correct |
6 |
Correct |
100 ms |
3676 KB |
Output is correct |
7 |
Correct |
117 ms |
3620 KB |
Output is correct |
8 |
Correct |
105 ms |
3760 KB |
Output is correct |
9 |
Correct |
101 ms |
3664 KB |
Output is correct |
10 |
Correct |
101 ms |
3664 KB |
Output is correct |
11 |
Correct |
101 ms |
3664 KB |
Output is correct |
12 |
Correct |
105 ms |
3936 KB |
Output is correct |
13 |
Correct |
105 ms |
3664 KB |
Output is correct |
14 |
Correct |
98 ms |
3668 KB |
Output is correct |
15 |
Incorrect |
116 ms |
3500 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
109 ms |
3480 KB |
Output is correct |
3 |
Correct |
105 ms |
3664 KB |
Output is correct |
4 |
Correct |
1124 ms |
33224 KB |
Output is correct |
5 |
Correct |
104 ms |
3664 KB |
Output is correct |
6 |
Correct |
105 ms |
3672 KB |
Output is correct |
7 |
Correct |
105 ms |
3668 KB |
Output is correct |
8 |
Correct |
106 ms |
3640 KB |
Output is correct |
9 |
Correct |
103 ms |
3664 KB |
Output is correct |
10 |
Correct |
109 ms |
3668 KB |
Output is correct |
11 |
Correct |
105 ms |
3512 KB |
Output is correct |
12 |
Correct |
96 ms |
3664 KB |
Output is correct |
13 |
Correct |
109 ms |
3668 KB |
Output is correct |
14 |
Incorrect |
1097 ms |
33384 KB |
Output isn't correct |
15 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
45 ms |
12724 KB |
Output is correct |
3 |
Correct |
70 ms |
18480 KB |
Output is correct |
4 |
Correct |
2 ms |
860 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
344 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
6 ms |
1116 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 |
1 ms |
348 KB |
Output is correct |
15 |
Correct |
33 ms |
7052 KB |
Output is correct |
16 |
Correct |
29 ms |
7004 KB |
Output is correct |
17 |
Correct |
119 ms |
10004 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 |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
123 ms |
32172 KB |
Output is correct |
26 |
Correct |
177 ms |
32336 KB |
Output is correct |
27 |
Correct |
112 ms |
30628 KB |
Output is correct |
28 |
Correct |
750 ms |
33396 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
1024 ms |
33296 KB |
Output is correct |
31 |
Correct |
1061 ms |
33232 KB |
Output is correct |
32 |
Correct |
1048 ms |
33264 KB |
Output is correct |
33 |
Correct |
1 ms |
348 KB |
Output is correct |
34 |
Correct |
1038 ms |
33084 KB |
Output is correct |
35 |
Correct |
1069 ms |
32992 KB |
Output is correct |
36 |
Correct |
1278 ms |
33040 KB |
Output is correct |
37 |
Correct |
1074 ms |
33296 KB |
Output is correct |
38 |
Correct |
0 ms |
344 KB |
Output is correct |
39 |
Correct |
100 ms |
3676 KB |
Output is correct |
40 |
Correct |
117 ms |
3620 KB |
Output is correct |
41 |
Correct |
105 ms |
3760 KB |
Output is correct |
42 |
Correct |
101 ms |
3664 KB |
Output is correct |
43 |
Correct |
101 ms |
3664 KB |
Output is correct |
44 |
Correct |
101 ms |
3664 KB |
Output is correct |
45 |
Correct |
105 ms |
3936 KB |
Output is correct |
46 |
Correct |
105 ms |
3664 KB |
Output is correct |
47 |
Correct |
98 ms |
3668 KB |
Output is correct |
48 |
Incorrect |
116 ms |
3500 KB |
Output isn't correct |
49 |
Halted |
0 ms |
0 KB |
- |