oj.uz

Submission #336321

# Submission time Handle Problem Language Result Execution time Memory
336321 2020-12-15T04:38:50 Z tengiz05 Bigger segments (IZhO19_segments) C++17
37 / 100
 1500 ms 137964 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define FASTIO ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define pii pair<int, int>
#define ff first
#define ss second
#define PI acos(-1)
#define ld long double
const int mod = 1e9+7, N = 100005, inf = 1e18;
int msb(int val){return sizeof(int)*8-__builtin_clzll(val);}
int a[N], n, m, k;
vector<pii> dp[N];
int pr[N];
vector<int> pm[N];
void solve(int test_case){
	int i, j;
	cin >> n;
	for(i=1;i<=n;i++){
		cin >> a[i];
		pr[i]=a[i];pr[i]+=pr[i-1];
	}
	for(i=1;i<=n;i++){
		dp[i].pb({pr[i], 1});
		dp[i].pb({inf, -213234684});
		pm[i].pb(dp[i][0].ss);
		for(j=1;j<dp[i].size();j++)pm[i].pb(max(pm[i].back(), dp[i][j].ss));
	}
	for(i=2;i<=n;i++){
		for(j=1;j<i;j++){
			int s = pr[i]-pr[j];
			int pos = upper_bound(all(dp[j]), pii{s+1,-1})-dp[j].begin();pos--;
			if(pos<0)continue;
			int mx = pm[j][pos];
			dp[i].pb({s, mx+1});
		}sort(all(dp[i]));
		pm[i].clear();
		pm[i].pb(dp[i][0].ss);
		for(j=1;j<dp[i].size();j++)pm[i].pb(max(pm[i].back(), dp[i][j].ss));
	}
	int ans = 1;
	for(auto [x, y] : dp[n]){
		ans = max(ans, y);
	} 
	cout << ans << '\n';
	return;
}

signed main(){
	FASTIO;
#define MULTITEST 0
#if MULTITEST
	int ___T;
	cin >> ___T;
	for(int T_CASE = 1; T_CASE <= ___T; T_CASE++)
		solve(T_CASE);
#else
	solve(1);
#endif
	return 0;
}

Compilation message

segments.cpp: In function 'void solve(long long int)':
segments.cpp:29:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |   for(j=1;j<dp[i].size();j++)pm[i].pb(max(pm[i].back(), dp[i][j].ss));
      |           ~^~~~~~~~~~~~~
segments.cpp:41:12: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |   for(j=1;j<dp[i].size();j++)pm[i].pb(max(pm[i].back(), dp[i][j].ss));
      |           ~^~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 3 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 3 ms 5100 KB Output is correct
6 Correct 3 ms 5100 KB Output is correct
7 Correct 3 ms 5100 KB Output is correct
8 Correct 3 ms 5100 KB Output is correct
9 Correct 3 ms 5100 KB Output is correct
10 Correct 3 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 3 ms 5100 KB Output is correct
13 Correct 3 ms 5100 KB Output is correct
14 Correct 3 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 3 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 3 ms 5100 KB Output is correct
6 Correct 3 ms 5100 KB Output is correct
7 Correct 3 ms 5100 KB Output is correct
8 Correct 3 ms 5100 KB Output is correct
9 Correct 3 ms 5100 KB Output is correct
10 Correct 3 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 3 ms 5100 KB Output is correct
13 Correct 3 ms 5100 KB Output is correct
14 Correct 3 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 11 ms 8428 KB Output is correct
18 Correct 13 ms 8940 KB Output is correct
19 Correct 12 ms 9068 KB Output is correct
20 Correct 12 ms 9068 KB Output is correct
21 Correct 13 ms 8940 KB Output is correct
22 Correct 9 ms 7660 KB Output is correct
23 Correct 7 ms 6380 KB Output is correct
24 Correct 14 ms 8960 KB Output is correct
25 Correct 13 ms 8940 KB Output is correct
26 Correct 12 ms 9068 KB Output is correct
27 Correct 10 ms 7788 KB Output is correct
28 Correct 13 ms 8960 KB Output is correct
29 Correct 13 ms 9068 KB Output is correct
30 Correct 13 ms 9068 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 3 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 3 ms 5100 KB Output is correct
6 Correct 3 ms 5100 KB Output is correct
7 Correct 3 ms 5100 KB Output is correct
8 Correct 3 ms 5100 KB Output is correct
9 Correct 3 ms 5100 KB Output is correct
10 Correct 3 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 3 ms 5100 KB Output is correct
13 Correct 3 ms 5100 KB Output is correct
14 Correct 3 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 11 ms 8428 KB Output is correct
18 Correct 13 ms 8940 KB Output is correct
19 Correct 12 ms 9068 KB Output is correct
20 Correct 12 ms 9068 KB Output is correct
21 Correct 13 ms 8940 KB Output is correct
22 Correct 9 ms 7660 KB Output is correct
23 Correct 7 ms 6380 KB Output is correct
24 Correct 14 ms 8960 KB Output is correct
25 Correct 13 ms 8940 KB Output is correct
26 Correct 12 ms 9068 KB Output is correct
27 Correct 10 ms 7788 KB Output is correct
28 Correct 13 ms 8960 KB Output is correct
29 Correct 13 ms 9068 KB Output is correct
30 Correct 13 ms 9068 KB Output is correct
31 Correct 21 ms 5356 KB Output is correct
32 Correct 382 ms 108396 KB Output is correct
33 Correct 512 ms 135788 KB Output is correct
34 Correct 459 ms 107628 KB Output is correct
35 Correct 522 ms 137836 KB Output is correct
36 Correct 516 ms 134848 KB Output is correct
37 Correct 341 ms 95596 KB Output is correct
38 Correct 210 ms 62188 KB Output is correct
39 Correct 535 ms 135020 KB Output is correct
40 Correct 530 ms 135148 KB Output is correct
41 Correct 523 ms 137836 KB Output is correct
42 Correct 464 ms 116844 KB Output is correct
43 Correct 469 ms 112620 KB Output is correct
44 Correct 510 ms 137964 KB Output is correct
45 Correct 520 ms 137692 KB Output is correct

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 3 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 3 ms 5100 KB Output is correct
6 Correct 3 ms 5100 KB Output is correct
7 Correct 3 ms 5100 KB Output is correct
8 Correct 3 ms 5100 KB Output is correct
9 Correct 3 ms 5100 KB Output is correct
10 Correct 3 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 3 ms 5100 KB Output is correct
13 Correct 3 ms 5100 KB Output is correct
14 Correct 3 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 11 ms 8428 KB Output is correct
18 Correct 13 ms 8940 KB Output is correct
19 Correct 12 ms 9068 KB Output is correct
20 Correct 12 ms 9068 KB Output is correct
21 Correct 13 ms 8940 KB Output is correct
22 Correct 9 ms 7660 KB Output is correct
23 Correct 7 ms 6380 KB Output is correct
24 Correct 14 ms 8960 KB Output is correct
25 Correct 13 ms 8940 KB Output is correct
26 Correct 12 ms 9068 KB Output is correct
27 Correct 10 ms 7788 KB Output is correct
28 Correct 13 ms 8960 KB Output is correct
29 Correct 13 ms 9068 KB Output is correct
30 Correct 13 ms 9068 KB Output is correct
31 Correct 21 ms 5356 KB Output is correct
32 Correct 382 ms 108396 KB Output is correct
33 Correct 512 ms 135788 KB Output is correct
34 Correct 459 ms 107628 KB Output is correct
35 Correct 522 ms 137836 KB Output is correct
36 Correct 516 ms 134848 KB Output is correct
37 Correct 341 ms 95596 KB Output is correct
38 Correct 210 ms 62188 KB Output is correct
39 Correct 535 ms 135020 KB Output is correct
40 Correct 530 ms 135148 KB Output is correct
41 Correct 523 ms 137836 KB Output is correct
42 Correct 464 ms 116844 KB Output is correct
43 Correct 469 ms 112620 KB Output is correct
44 Correct 510 ms 137964 KB Output is correct
45 Correct 520 ms 137692 KB Output is correct
46 Execution timed out 1588 ms 14700 KB Time limit exceeded
47 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5100 KB Output is correct
2 Correct 3 ms 5100 KB Output is correct
3 Correct 3 ms 5100 KB Output is correct
4 Correct 4 ms 5100 KB Output is correct
5 Correct 3 ms 5100 KB Output is correct
6 Correct 3 ms 5100 KB Output is correct
7 Correct 3 ms 5100 KB Output is correct
8 Correct 3 ms 5100 KB Output is correct
9 Correct 3 ms 5100 KB Output is correct
10 Correct 3 ms 5100 KB Output is correct
11 Correct 3 ms 5100 KB Output is correct
12 Correct 3 ms 5100 KB Output is correct
13 Correct 3 ms 5100 KB Output is correct
14 Correct 3 ms 5100 KB Output is correct
15 Correct 3 ms 5100 KB Output is correct
16 Correct 4 ms 5100 KB Output is correct
17 Correct 11 ms 8428 KB Output is correct
18 Correct 13 ms 8940 KB Output is correct
19 Correct 12 ms 9068 KB Output is correct
20 Correct 12 ms 9068 KB Output is correct
21 Correct 13 ms 8940 KB Output is correct
22 Correct 9 ms 7660 KB Output is correct
23 Correct 7 ms 6380 KB Output is correct
24 Correct 14 ms 8960 KB Output is correct
25 Correct 13 ms 8940 KB Output is correct
26 Correct 12 ms 9068 KB Output is correct
27 Correct 10 ms 7788 KB Output is correct
28 Correct 13 ms 8960 KB Output is correct
29 Correct 13 ms 9068 KB Output is correct
30 Correct 13 ms 9068 KB Output is correct
31 Correct 21 ms 5356 KB Output is correct
32 Correct 382 ms 108396 KB Output is correct
33 Correct 512 ms 135788 KB Output is correct
34 Correct 459 ms 107628 KB Output is correct
35 Correct 522 ms 137836 KB Output is correct
36 Correct 516 ms 134848 KB Output is correct
37 Correct 341 ms 95596 KB Output is correct
38 Correct 210 ms 62188 KB Output is correct
39 Correct 535 ms 135020 KB Output is correct
40 Correct 530 ms 135148 KB Output is correct
41 Correct 523 ms 137836 KB Output is correct
42 Correct 464 ms 116844 KB Output is correct
43 Correct 469 ms 112620 KB Output is correct
44 Correct 510 ms 137964 KB Output is correct
45 Correct 520 ms 137692 KB Output is correct
46 Execution timed out 1588 ms 14700 KB Time limit exceeded
47 Halted 0 ms 0 KB -