Submission #336246

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
336246	2020-12-15T03:27:01 Z	tengiz05	Bigger segments (IZhO19_segments)	C++17	27 / 100	1500 ms	25248 KB

segments

#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 = 5005;
int msb(int val){return sizeof(int)*8-__builtin_clzll(val);}
int a[N], n, m, k;
vector<pii> dp[N];
int pr[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});
	}
	for(i=1;i<=n;i++){
		for(j=1;j<i;j++){
			int s = pr[i]-pr[j];
			int pos = lower_bound(all(dp[j]), pii{s,-1})-dp[j].begin();pos--;
			int mx=0;
			bool f = false;//if(pos<0)f=false;
			//if(i == 5)cout << s << '\n';
			for(k=0;k<dp[j].size();k++){
				if(dp[j][k].ff > s)continue;
				mx = max(mx, dp[j][k].ss);f=true;
				//if(i==5)cout << dp[j][k].ff << ' ' << dp[j][k].ss << '\n';
			}
			if(f)dp[i].pb({s, mx+1});
		}
	}
/*	for(i=1;i<=n;i++){
		cout << "doing " << i<< '\n';
		for(auto [x, y] : dp[i]){
			cout << x << ' ' << y << '\n';
		}
	}
	*/
	cout << dp[n].back().ss << '\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:34:13: 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]
   34 |    for(k=0;k<dp[j].size();k++){
      |            ~^~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	25 ms	2668 KB	Output is correct
18	Correct	29 ms	3052 KB	Output is correct
19	Correct	29 ms	3180 KB	Output is correct
20	Correct	30 ms	3180 KB	Output is correct
21	Correct	29 ms	3052 KB	Output is correct
22	Correct	16 ms	2156 KB	Output is correct
23	Correct	7 ms	1388 KB	Output is correct
24	Correct	31 ms	3180 KB	Output is correct
25	Correct	29 ms	3052 KB	Output is correct
26	Correct	31 ms	3180 KB	Output is correct
27	Correct	23 ms	2284 KB	Output is correct
28	Correct	31 ms	3052 KB	Output is correct
29	Correct	31 ms	3180 KB	Output is correct
30	Correct	43 ms	3180 KB	Output is correct

Subtask #3
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	25 ms	2668 KB	Output is correct
18	Correct	29 ms	3052 KB	Output is correct
19	Correct	29 ms	3180 KB	Output is correct
20	Correct	30 ms	3180 KB	Output is correct
21	Correct	29 ms	3052 KB	Output is correct
22	Correct	16 ms	2156 KB	Output is correct
23	Correct	7 ms	1388 KB	Output is correct
24	Correct	31 ms	3180 KB	Output is correct
25	Correct	29 ms	3052 KB	Output is correct
26	Correct	31 ms	3180 KB	Output is correct
27	Correct	23 ms	2284 KB	Output is correct
28	Correct	31 ms	3052 KB	Output is correct
29	Correct	31 ms	3180 KB	Output is correct
30	Correct	43 ms	3180 KB	Output is correct
31	Correct	30 ms	620 KB	Output is correct
32	Execution timed out	1593 ms	25248 KB	Time limit exceeded
33	Halted	0 ms	0 KB	-

Subtask #4
0 / 36.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	25 ms	2668 KB	Output is correct
18	Correct	29 ms	3052 KB	Output is correct
19	Correct	29 ms	3180 KB	Output is correct
20	Correct	30 ms	3180 KB	Output is correct
21	Correct	29 ms	3052 KB	Output is correct
22	Correct	16 ms	2156 KB	Output is correct
23	Correct	7 ms	1388 KB	Output is correct
24	Correct	31 ms	3180 KB	Output is correct
25	Correct	29 ms	3052 KB	Output is correct
26	Correct	31 ms	3180 KB	Output is correct
27	Correct	23 ms	2284 KB	Output is correct
28	Correct	31 ms	3052 KB	Output is correct
29	Correct	31 ms	3180 KB	Output is correct
30	Correct	43 ms	3180 KB	Output is correct
31	Correct	30 ms	620 KB	Output is correct
32	Execution timed out	1593 ms	25248 KB	Time limit exceeded
33	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	492 KB	Output is correct
2	Correct	1 ms	492 KB	Output is correct
3	Correct	1 ms	492 KB	Output is correct
4	Correct	1 ms	492 KB	Output is correct
5	Correct	1 ms	492 KB	Output is correct
6	Correct	1 ms	492 KB	Output is correct
7	Correct	1 ms	492 KB	Output is correct
8	Correct	1 ms	492 KB	Output is correct
9	Correct	1 ms	492 KB	Output is correct
10	Correct	1 ms	492 KB	Output is correct
11	Correct	1 ms	492 KB	Output is correct
12	Correct	1 ms	492 KB	Output is correct
13	Correct	1 ms	492 KB	Output is correct
14	Correct	1 ms	492 KB	Output is correct
15	Correct	1 ms	492 KB	Output is correct
16	Correct	1 ms	492 KB	Output is correct
17	Correct	25 ms	2668 KB	Output is correct
18	Correct	29 ms	3052 KB	Output is correct
19	Correct	29 ms	3180 KB	Output is correct
20	Correct	30 ms	3180 KB	Output is correct
21	Correct	29 ms	3052 KB	Output is correct
22	Correct	16 ms	2156 KB	Output is correct
23	Correct	7 ms	1388 KB	Output is correct
24	Correct	31 ms	3180 KB	Output is correct
25	Correct	29 ms	3052 KB	Output is correct
26	Correct	31 ms	3180 KB	Output is correct
27	Correct	23 ms	2284 KB	Output is correct
28	Correct	31 ms	3052 KB	Output is correct
29	Correct	31 ms	3180 KB	Output is correct
30	Correct	43 ms	3180 KB	Output is correct
31	Correct	30 ms	620 KB	Output is correct
32	Execution timed out	1593 ms	25248 KB	Time limit exceeded
33	Halted	0 ms	0 KB	-

Submission #336246

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 0 / 10.0

Subtask #4 0 / 36.0

Subtask #5 0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
0 / 10.0

Subtask #4
0 / 36.0

Subtask #5
0 / 27.0