#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define S second
#define F first
#define all(x) (x).begin(),(x).end()
#define sz size()
#define Yes cout << "YES" << endl
#define No cout << "NO" << endl
#define pb(x) push_back(x);
#define endl '\n'
#define fast ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
const int N=1e6+7;
ll INF=INT_MAX,mod=1e9+7;
int TT=1;
ll power(ll x, unsigned int y)
{
ll res = 1;
x = x; // % mod;
if (x == 0) return 0;
while (y > 0)
{
if (y & 1) res = (res*x) ; // % mod;
y = y>>1;
x = (x*x) ; // % mod;
}
return res;
}
vector<ll> v[N];
ll npr[N];
void solve()
{
ll n , a , b; cin >> n >> a >> b;
multiset<ll> s;
ll aa = a;
for(int i = 0; i < v[a].sz; i++)
{
ll pr = v[a][i];
ll cnt = 0;
while(aa%pr==0) cnt++,aa/=pr;
for(int k = 0; k < cnt; k++)s.insert(pr);
}
ll bb = (b+1);
for(int i = 0; i < v[b+1].sz; i++)
{
ll pr = v[b+1][i];
ll cnt = 0;
while(bb%pr==0) cnt++,bb/=pr;
for(int k = 0; k < cnt; k++)
{
if(s.find(pr)!=s.end()) s.erase(s.find(pr)); else break;
}
}
ll dis = 1;
for(auto it = s.begin(); it !=s.end(); it++)
dis*=*it;
dis*=b;
vector<ll> vec;
for(int i = 1; i <= n; i++)
{
ll l , r; cin >> l >> r;
for(int j = l; j <= r; j++) vec.push_back(j);
}
ll cnt = 0;
for(int i = 0; i < vec.sz; i++)
{
bool ok = 1;
for(int j = i+1; j < vec.sz; j++)
{
ll dif = vec[j]-vec[i];
if(dif%dis==0) ok = 0;
}
if(ok) cnt++;
}
cout << cnt << endl;
}
int main(){
//freopen("friday.in","r",stdin);
//freopen("friday.out","w",stdout);
fast;
for(int i = 2; i < N; i++)
{
if(npr[i]==0)
for(int j = i; j < N; j+=i)
{
npr[j] = 1;
v[j].push_back(j);
}
}
while(TT--)
solve();
return 0;
}
Compilation message
strange_device.cpp: In function 'void solve()':
strange_device.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | for(int i = 0; i < v[a].sz; i++)
| ^
strange_device.cpp:45:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
45 | for(int i = 0; i < v[b+1].sz; i++)
| ^
strange_device.cpp:66:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
66 | for(int i = 0; i < vec.sz; i++)
| ^
strange_device.cpp:69:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
69 | for(int j = i+1; j < vec.sz; j++)
| ^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
440 ms |
78672 KB |
Output is correct |
2 |
Runtime error |
770 ms |
524288 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
411 ms |
78464 KB |
Output is correct |
2 |
Runtime error |
388 ms |
158744 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
377 ms |
78440 KB |
Output is correct |
2 |
Runtime error |
597 ms |
524288 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
391 ms |
78376 KB |
Output is correct |
2 |
Runtime error |
390 ms |
158548 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
391 ms |
78376 KB |
Output is correct |
2 |
Runtime error |
390 ms |
158548 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
391 ms |
78376 KB |
Output is correct |
2 |
Runtime error |
390 ms |
158548 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
384 ms |
78240 KB |
Output is correct |
2 |
Runtime error |
596 ms |
524288 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
440 ms |
78672 KB |
Output is correct |
2 |
Runtime error |
770 ms |
524288 KB |
Execution killed with signal 9 |
3 |
Halted |
0 ms |
0 KB |
- |