/*
Uruchamiamy samolot zwiadowczy ( + 500% do wzlamaniej )
/▄/ /█/ /◐/ /▐/ /▌/ /▀/ /░/ /🔥/ choose own style!
***IT'S OUR LONG WAY TO THE OIILLLL***
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*/
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4")
#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/detail/standard_policies.hpp>'
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;template <typename T> using ordered_set = tree <T, null_type, less< T >, rb_tree_tag,tree_order_statistics_node_update>;
#define pb push_back
#define ll long long
#define ld long double
#define fi first
#define se second
//#define pi 3.14159265358979323846
#define pii pair < ll , int >
#define pipii pair< int, pair < int , int > >
#define siz(n) (int)(n.size())
#define TIME 1.0 * clock() / CLOCKS_PER_SEC
const int inf=1e9 + 7;
const ll inf18=1e18 + 7;
const int N=1e5 + 7;
const int MN = 2097152;
const int M = 1e9 + 7;
int k, n, m, st, en;
vector < pii > g[N];
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
#ifdef Estb_probitie
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int n;
cin >> n;
int a[n];
ll pref[n] = {};
for (int i = 0; i < n; ++i)
cin >> a[i];
pref[0] = a[0];
for (int i = 1; i < n; ++i)
pref[i] = pref[i - 1] + a[i];
int dp[n] = {};
int st[n] = {};
dp[0] = 1;
st[0] = 0;
int ans = 0;
for (int i = 0; i < n; ++i)
{
ans = max(ans, dp[i]);
if (i)
if (dp[i] < dp[i - 1])
{
dp[i] = dp[i - 1];
st[i] = st[i - 1];
}
ll ousum = pref[i];
if (st[i])
ousum -= pref[st[i] - 1];
int l = i + 1, r = n;
while(l < r)
{
int mid = (l + r) >> 1;
if (pref[mid] - pref[i] < ousum)
l = mid + 1; else r = mid;
}
if (l == n) continue;
dp[l] = dp[i] + 1;
st[l] = i + 1;
}
cout << ans;
}
Compilation message
segments.cpp:35:50: warning: missing terminating ' character
#include <ext/pb_ds/detail/standard_policies.hpp>'
^
segments.cpp:35:50: warning: extra tokens at end of #include directive
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2684 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2676 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 24 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 25 |
Correct |
4 ms |
2652 KB |
Output is correct |
| 26 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 27 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 28 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2680 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2684 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2676 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 24 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 25 |
Correct |
4 ms |
2652 KB |
Output is correct |
| 26 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 27 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 28 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 31 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 32 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 33 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 34 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 36 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 37 |
Incorrect |
5 ms |
2680 KB |
Output isn't correct |
| 38 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2684 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2676 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 24 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 25 |
Correct |
4 ms |
2652 KB |
Output is correct |
| 26 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 27 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 28 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 31 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 32 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 33 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 34 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 36 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 37 |
Incorrect |
5 ms |
2680 KB |
Output isn't correct |
| 38 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 5 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 6 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 7 |
Correct |
5 ms |
2728 KB |
Output is correct |
| 8 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 11 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 12 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 13 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 14 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 15 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 16 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 17 |
Correct |
4 ms |
2684 KB |
Output is correct |
| 18 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 19 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 20 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2676 KB |
Output is correct |
| 22 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 23 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 24 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 25 |
Correct |
4 ms |
2652 KB |
Output is correct |
| 26 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 27 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 28 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 29 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 30 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 31 |
Correct |
5 ms |
2680 KB |
Output is correct |
| 32 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 33 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 34 |
Correct |
6 ms |
2808 KB |
Output is correct |
| 35 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 36 |
Correct |
5 ms |
2808 KB |
Output is correct |
| 37 |
Incorrect |
5 ms |
2680 KB |
Output isn't correct |
| 38 |
Halted |
0 ms |
0 KB |
- |
