#include<bits/stdc++.h>
using namespace std;
signed main() {
int n; cin >> n;
vector<int> l(n), r(n);
for(int i=0; i<n; i++) cin >> l[i] >> r[i];
vector<int> dp(n, 1);
for(int i=0; i<n; i++) {
for(int j=i-1; j>=max(0, i-6); j--) {
if(j+r[j] < i && j < i-l[i]) dp[i]=max(dp[i], dp[j]+1);
}
}
int ans=0;
for(int i=0; i<n; i++) ans=max(ans, dp[i]);
cout << ans;
return 0;
}
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |
# | Verdict | Execution time | Memory | Grader output |
---|
Fetching results... |