#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> ii;
typedef pair<ll, ii> iii;
typedef string str;
typedef vector<ll> vl;
typedef vector< vector<ll> > vvl;
typedef vector<ii> vii;
typedef vector< vector<ii> > vvii;
typedef vector<iii> viii;
typedef vector< vector<iii> > vviii;
typedef vector<str> vs;
typedef vector< vector<str> > vvs;
typedef long double ld;
typedef priority_queue<long long> pq;
/*
Hiiden Function
__gcd()
__builtin_clz(x)
__builtin_ctz(x)
__builtin_popcount(x)
*/
//typedef tree<int, null_type, less<int>, rb_tree_tag, tree_order_statistics_node_update> pbds;
// debugging Function
#define error(args...) { string _s = #args; replace(_s.begin(), _s.end(), ',', ' '); stringstream _ss(_s); istream_iterator<string> _it(_ss); err(_it, args); }
void err(istream_iterator<string> it) {}
template<typename T, typename... Args>
void err(istream_iterator<string> it, T a, Args... args) {
cerr << *it << " = " << a << endl;
err(++it, args...);
}
#define LSOne(S) ( (S) & -(S))
#define elif else if
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define FOR(i,v) for(auto i:v)
#define rep(i, begin, end) for(__typeof(end) i=(begin) -((begin)>(end));i!=(end)-((begin)>(end)); i+= 1 - 2*((begin)>(end)))
#define repin(i,a,b,x) for(int i=(a);i<(b);i+=x)
#define repnin(i,a,b,x) for(int i=(a);i<=(b);i+=x)
#define MAX(a,b) a=max(a,b)
#define MIN(a,b) a=min(a,b)
#define fbo find_by_order
#define ook order_of_key
#define ALL(v) v.begin(),v.end()
#define FILL(arr,x) memset(arr,x,sizeof arr);
// if else int i = (number <0) ? 1:0 - if (number <0) i=1 else 0
const ll MOD = 1e9 + 7;
const ll INF = 1e9;
const ld EPS = 1e-9;
map<char,int> st;
int main()
{
//ios_base::sync_with_stdio(0);
//cin.tie(0);
//cout.tie(0);
//freopen("UT.txt","w",stdout);
int n;
cin >> n;
ll a[n+1];
rep(i,1,n+1) cin >> a[i] >> a[i];
a[0]=INF;
ll dp[n+1];
FILL(dp,0);
rep(i,1,n+1){
rep(j,0,i){
dp[i]+=(a[j]<a[i])? dp[j]:0;
dp[i]%=MOD;
}
dp[i]+=1;
dp[i]%=MOD;
}
int ans=0;
rep(i,1,n+1){
ans+=dp[i];
ans%=MOD;
}
cout << ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
204 KB |
Output is correct |
| 2 |
Correct |
2 ms |
208 KB |
Output is correct |
| 3 |
Correct |
2 ms |
304 KB |
Output is correct |
| 4 |
Correct |
2 ms |
204 KB |
Output is correct |
| 5 |
Correct |
2 ms |
332 KB |
Output is correct |
| 6 |
Correct |
2 ms |
204 KB |
Output is correct |
| 7 |
Correct |
2 ms |
204 KB |
Output is correct |
| 8 |
Correct |
2 ms |
304 KB |
Output is correct |
| 9 |
Correct |
2 ms |
204 KB |
Output is correct |
| 10 |
Correct |
2 ms |
204 KB |
Output is correct |
| 11 |
Correct |
3 ms |
204 KB |
Output is correct |
| 12 |
Correct |
2 ms |
204 KB |
Output is correct |
| 13 |
Correct |
2 ms |
204 KB |
Output is correct |
| 14 |
Correct |
2 ms |
204 KB |
Output is correct |
| 15 |
Correct |
2 ms |
204 KB |
Output is correct |
| 16 |
Correct |
2 ms |
204 KB |
Output is correct |
| 17 |
Correct |
2 ms |
204 KB |
Output is correct |
| 18 |
Correct |
2 ms |
204 KB |
Output is correct |
| 19 |
Correct |
2 ms |
204 KB |
Output is correct |
| 20 |
Correct |
2 ms |
204 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
204 KB |
Output is correct |
| 2 |
Correct |
2 ms |
208 KB |
Output is correct |
| 3 |
Correct |
2 ms |
304 KB |
Output is correct |
| 4 |
Correct |
2 ms |
204 KB |
Output is correct |
| 5 |
Correct |
2 ms |
332 KB |
Output is correct |
| 6 |
Correct |
2 ms |
204 KB |
Output is correct |
| 7 |
Correct |
2 ms |
204 KB |
Output is correct |
| 8 |
Correct |
2 ms |
304 KB |
Output is correct |
| 9 |
Correct |
2 ms |
204 KB |
Output is correct |
| 10 |
Correct |
2 ms |
204 KB |
Output is correct |
| 11 |
Correct |
3 ms |
204 KB |
Output is correct |
| 12 |
Correct |
2 ms |
204 KB |
Output is correct |
| 13 |
Correct |
2 ms |
204 KB |
Output is correct |
| 14 |
Correct |
2 ms |
204 KB |
Output is correct |
| 15 |
Correct |
2 ms |
204 KB |
Output is correct |
| 16 |
Correct |
2 ms |
204 KB |
Output is correct |
| 17 |
Correct |
2 ms |
204 KB |
Output is correct |
| 18 |
Correct |
2 ms |
204 KB |
Output is correct |
| 19 |
Correct |
2 ms |
204 KB |
Output is correct |
| 20 |
Correct |
2 ms |
204 KB |
Output is correct |
| 21 |
Incorrect |
2 ms |
296 KB |
Output isn't correct |
| 22 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
204 KB |
Output is correct |
| 2 |
Correct |
2 ms |
208 KB |
Output is correct |
| 3 |
Correct |
2 ms |
304 KB |
Output is correct |
| 4 |
Correct |
2 ms |
204 KB |
Output is correct |
| 5 |
Correct |
2 ms |
332 KB |
Output is correct |
| 6 |
Correct |
2 ms |
204 KB |
Output is correct |
| 7 |
Correct |
2 ms |
204 KB |
Output is correct |
| 8 |
Correct |
2 ms |
304 KB |
Output is correct |
| 9 |
Correct |
2 ms |
204 KB |
Output is correct |
| 10 |
Correct |
2 ms |
204 KB |
Output is correct |
| 11 |
Correct |
3 ms |
204 KB |
Output is correct |
| 12 |
Correct |
2 ms |
204 KB |
Output is correct |
| 13 |
Correct |
2 ms |
204 KB |
Output is correct |
| 14 |
Correct |
2 ms |
204 KB |
Output is correct |
| 15 |
Correct |
2 ms |
204 KB |
Output is correct |
| 16 |
Correct |
2 ms |
204 KB |
Output is correct |
| 17 |
Correct |
2 ms |
204 KB |
Output is correct |
| 18 |
Correct |
2 ms |
204 KB |
Output is correct |
| 19 |
Correct |
2 ms |
204 KB |
Output is correct |
| 20 |
Correct |
2 ms |
204 KB |
Output is correct |
| 21 |
Incorrect |
2 ms |
296 KB |
Output isn't correct |
| 22 |
Halted |
0 ms |
0 KB |
- |
