#include <bits/stdc++.h>
using namespace std;
#define int long long
#define in ({int x=0;int c=getchar(),n=0;for(;!isdigit(c);c=getchar()) n=(c=='-');for(;isdigit(c);c=getchar()) x=x*10+c-'0';n?-x:x;})
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rnd(int l,int r){return l+rng()%(r-l+1);}
#define fasty ios_base::sync_with_stdio(false),cin.tie(nullptr);
#define task "A"
#define forinc(a,b,c) for(int a=b,_c=c;a<=_c;++a)
#define fordec(a,b,c) for(int a=b,_c=c;a>=_c;--a)
#define forv(a,b) for(auto&a:b)
#define fi first
#define se second
#define pb push_back
#define ii pair<int,int>
#define mt make_tuple
#define all(a) a.begin(),a.end()
#define reset(f, x) memset(f, x, sizeof(f))
#define bit(x,i) ((x>>(i-1))&1)
#define on(x,i) (x|(1ll<<(i-1)))
#define off(x,i) (x&~(1<<(i-1)))
main(){
//freopen(task".inp","r",stdin);
//freopen(task".out","w",stdout);
int n=in,a=in,b=in,sz=a/__gcd(a,b+1)*b;
vector<ii> tmp;
forinc(i,1,n){
int l=in,r=in;
if(r-l+1>sz) return cout<<sz,0;
l=l%sz; r=r%sz;
if(l<=r) tmp.pb({l,r});
else tmp.pb({l,sz-1}),tmp.pb({0,r});
}
sort(all(tmp));
int ret=0;
forinc(i,0,tmp.size()-1){
int j=i,hold=tmp[i].se;
while(j<tmp.size() && tmp[j].fi<=hold){
hold=max(hold,tmp[j].se);
j++;
}
ret+=hold-tmp[i].fi+1;
i=j-1;
}
cout<<ret;
}
Compilation message
strange_device.cpp:22:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
22 | main(){
| ^~~~
strange_device.cpp: In function 'int main()':
strange_device.cpp:38:16: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
38 | while(j<tmp.size() && tmp[j].fi<=hold){
| ~^~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
3 ms |
956 KB |
Output is correct |
3 |
Correct |
3 ms |
960 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
304 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
4 ms |
1064 KB |
Output is correct |
17 |
Correct |
29 ms |
5624 KB |
Output is correct |
18 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
0 ms |
212 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Incorrect |
0 ms |
212 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 |
316 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
164 ms |
41156 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
269 ms |
35660 KB |
Output is correct |
3 |
Correct |
235 ms |
23432 KB |
Output is correct |
4 |
Correct |
229 ms |
23424 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
269 ms |
35660 KB |
Output is correct |
3 |
Correct |
235 ms |
23432 KB |
Output is correct |
4 |
Correct |
229 ms |
23424 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
233 ms |
24156 KB |
Output is correct |
7 |
Correct |
248 ms |
24288 KB |
Output is correct |
8 |
Correct |
245 ms |
24180 KB |
Output is correct |
9 |
Correct |
395 ms |
24120 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
269 ms |
35660 KB |
Output is correct |
3 |
Correct |
235 ms |
23432 KB |
Output is correct |
4 |
Correct |
229 ms |
23424 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
25 ms |
5648 KB |
Output is correct |
7 |
Correct |
27 ms |
5600 KB |
Output is correct |
8 |
Correct |
24 ms |
5624 KB |
Output is correct |
9 |
Correct |
25 ms |
5652 KB |
Output is correct |
10 |
Correct |
25 ms |
5656 KB |
Output is correct |
11 |
Correct |
25 ms |
5596 KB |
Output is correct |
12 |
Correct |
26 ms |
5648 KB |
Output is correct |
13 |
Correct |
26 ms |
5672 KB |
Output is correct |
14 |
Correct |
25 ms |
5676 KB |
Output is correct |
15 |
Correct |
29 ms |
5624 KB |
Output is correct |
16 |
Correct |
27 ms |
5628 KB |
Output is correct |
17 |
Correct |
26 ms |
5688 KB |
Output is correct |
18 |
Correct |
288 ms |
53148 KB |
Output is correct |
19 |
Correct |
242 ms |
53184 KB |
Output is correct |
20 |
Correct |
302 ms |
53128 KB |
Output is correct |
21 |
Correct |
28 ms |
5688 KB |
Output is correct |
22 |
Correct |
23 ms |
5652 KB |
Output is correct |
23 |
Correct |
76 ms |
18472 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
31 ms |
5632 KB |
Output is correct |
3 |
Correct |
27 ms |
5656 KB |
Output is correct |
4 |
Correct |
326 ms |
36336 KB |
Output is correct |
5 |
Correct |
28 ms |
5692 KB |
Output is correct |
6 |
Correct |
29 ms |
5676 KB |
Output is correct |
7 |
Correct |
28 ms |
5616 KB |
Output is correct |
8 |
Correct |
28 ms |
5636 KB |
Output is correct |
9 |
Correct |
28 ms |
5692 KB |
Output is correct |
10 |
Correct |
30 ms |
5660 KB |
Output is correct |
11 |
Correct |
28 ms |
5704 KB |
Output is correct |
12 |
Correct |
23 ms |
5608 KB |
Output is correct |
13 |
Correct |
28 ms |
5616 KB |
Output is correct |
14 |
Correct |
290 ms |
36368 KB |
Output is correct |
15 |
Correct |
28 ms |
5688 KB |
Output is correct |
16 |
Correct |
241 ms |
36208 KB |
Output is correct |
17 |
Correct |
257 ms |
35808 KB |
Output is correct |
18 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
3 ms |
956 KB |
Output is correct |
3 |
Correct |
3 ms |
960 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
0 ms |
212 KB |
Output is correct |
6 |
Correct |
0 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
212 KB |
Output is correct |
8 |
Correct |
1 ms |
304 KB |
Output is correct |
9 |
Correct |
0 ms |
212 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
0 ms |
212 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
212 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
0 ms |
212 KB |
Output is correct |
16 |
Correct |
4 ms |
1064 KB |
Output is correct |
17 |
Correct |
29 ms |
5624 KB |
Output is correct |
18 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
19 |
Halted |
0 ms |
0 KB |
- |