#include <bits/stdc++.h>
#define stop system("pause")
#define INP freopen("promote.in","r",stdin)
#define OUTP freopen("promote.out","w",stdout)
#define double long double
#define int long long
using namespace std;
bool check(int x){
return x != -1;
}
map<int,int> qwe;
main()
{
ios_base::sync_with_stdio(0);
int n,a,b; cin >> n >> a >> b;
int lcm;
double kek = 1.0L*a*b;
if(kek >= 1e18+228)lcm = 1e18+228;
else lcm = a*b;
vector<pair<int,int> > v;
int res = 0;
for(int i(0); i < n;i++){
int l,r; cin >> l >> r;
/*for(int j(l); j <=r;j++){
if(qwe.count(j%lcm) == 0)res++;
qwe[i%lcm]++;
}*/
l%=lcm;
r%=lcm;
if(l <= r)v.push_back({l,r});
else{
if(check(lcm-1))v.push_back({l,lcm-1});
v.push_back({0,r});
}
}
sort(v.begin(),v.end());
int ans = 0;
int lastx,lasty; lastx = lasty = -1;
for(int i(0); i < v.size();i++){
int nx,ny;
nx = max(lasty+1,v[i].first);
ny = max(lasty,v[i].second);
if(nx >= lcm || nx >ny)continue;
ans+=ny-nx+1;
lastx = nx;
lasty = ny;
}
cout << ans;
return 0;
}
/*
3 1000000000000000000 1000000000000000000
2 15
55 123
324 2512
*/
Compilation message
strange_device.cpp:16:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main()
^
strange_device.cpp: In function 'int main()':
strange_device.cpp:43:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i(0); i < v.size();i++){
~~^~~~~~~~~~
strange_device.cpp:25:9: warning: unused variable 'res' [-Wunused-variable]
int res = 0;
^~~
strange_device.cpp:42:9: warning: variable 'lastx' set but not used [-Wunused-but-set-variable]
int lastx,lasty; lastx = lasty = -1;
^~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
8 ms |
1016 KB |
Output is correct |
3 |
Correct |
9 ms |
1016 KB |
Output is correct |
4 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Incorrect |
2 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
376 KB |
Output is correct |
3 |
Correct |
3 ms |
376 KB |
Output is correct |
4 |
Correct |
3 ms |
432 KB |
Output is correct |
5 |
Correct |
466 ms |
18140 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
733 ms |
17732 KB |
Output is correct |
3 |
Incorrect |
628 ms |
17472 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
733 ms |
17732 KB |
Output is correct |
3 |
Incorrect |
628 ms |
17472 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
733 ms |
17732 KB |
Output is correct |
3 |
Incorrect |
628 ms |
17472 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
68 ms |
3096 KB |
Output is correct |
3 |
Correct |
68 ms |
3056 KB |
Output is correct |
4 |
Correct |
687 ms |
17544 KB |
Output is correct |
5 |
Correct |
81 ms |
3312 KB |
Output is correct |
6 |
Correct |
69 ms |
3308 KB |
Output is correct |
7 |
Correct |
68 ms |
3312 KB |
Output is correct |
8 |
Correct |
69 ms |
3312 KB |
Output is correct |
9 |
Correct |
68 ms |
3312 KB |
Output is correct |
10 |
Correct |
70 ms |
3284 KB |
Output is correct |
11 |
Correct |
158 ms |
3564 KB |
Output is correct |
12 |
Correct |
65 ms |
3440 KB |
Output is correct |
13 |
Correct |
72 ms |
3572 KB |
Output is correct |
14 |
Correct |
691 ms |
17236 KB |
Output is correct |
15 |
Incorrect |
71 ms |
3184 KB |
Output isn't correct |
16 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
8 ms |
1016 KB |
Output is correct |
3 |
Correct |
9 ms |
1016 KB |
Output is correct |
4 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |