#include<bits/stdc++.h>
using namespace std;
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define ll int
const ll N = 1e5+5 , K = 110 , INF = 1e9 , MOD = 1e9+7 ;
ll dp[N][K];
vector<pair<ll,ll>> a(N);
ll n;
ll go(ll i , ll preval){
if(i == n+1) return 0;
if(dp[i][preval] != -1) return dp[i][preval];
ll ans = 0;
for(ll val = a[i].first; val <= a[i].second; val++) if(preval == K || val >= preval) ans = max(ans,1+go(i+1,val));
return dp[i][preval] = ans;
}
void solve(){
cin >> n;
for(ll i = 1; i <= n; i++){
cin >> a[i].first >> a[i].second;
a[i].first += 55;
a[i].second += 55;
}
memset(dp,-1,sizeof dp);
ll ans = 1;
for(ll i = 1; i <= n; i++) ans = max(ans,go(i,K));
cout << ans;
}
int main(){
fast;
ll tc = 1;
// cin >> tc;
while(tc--) solve();
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
18 ms |
44116 KB |
Memory limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
18 ms |
44168 KB |
Memory limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
48 ms |
44220 KB |
Memory limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
13 ms |
2908 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
19 ms |
3620 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
23 ms |
4252 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
24 ms |
4292 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
23 ms |
4168 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
12 ms |
2900 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
17 ms |
2900 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
23 ms |
4296 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Runtime error |
22 ms |
4308 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |