oj.uz

Submission #101314

# Submission time Handle Problem Language Result Execution time Memory
101314 2019-03-18T12:20:10 Z b2563125 Candies (JOI18_candies) C++14
100 / 100
 1643 ms 13312 KB 
#include<iostream>
#include<vector>
#include<string>
#include<stack>
#include<queue>
#include<utility>
#include<algorithm>
using namespace std;
#define int long long
#define vel vector<int>
#define vvel vector<vel>
#define vvvel vector<vvel>
#define veb vector<bool>
void mmax(int &a, int b) { a = max(a, b); }
vel com(vel &u, vel &v) {
	vel ans(1,0);
	int mu = 0; int mv = 0;
	int su = u.size();
	int sv = v.size();
	while (mu < su - 1 or mv < sv - 1) {
		int nu = mu + 1;
		int nv = mv + 1;
		if (nu == su) { mv++; }
		else if (nv == sv) { mu++; }
		else if (u[nu] - u[mu] > v[nv] - v[mv]) { mu++; }
		else { mv++; }
		ans.push_back(u[mu] + v[mv]);
	}
	return ans;
}
vel r_no(int st, int to, vel &a) {
	int siz = to - st;
	int ko = (siz + 3) / 2;
	vel bbdp(ko, -1); bbdp[0] = 0;
	vel bdp = bbdp; bdp[1] = a[st];
	for (int i = 2; i <= siz; i++) {
		vel ndp = bdp;
		for (int j = 1; j < ko; j++) {
			if (bbdp[j - 1] != -1) { mmax(ndp[j], bbdp[j - 1] + a[st + i - 1]); }
		}
		bbdp = bdp;
		bdp = ndp;
	}
	return bdp;
}
signed main() {
	int n; cin >> n;
	vel a(n);
	for (int i = 0; i < n; i++) { cin >> a[i]; }
	int ko = (n + 3) / 2;
	if (n < 2000) { 
		vel x = r_no(0, n, a);
		for (int i = 1; i < x.size(); i++) { cout << x[i] << endl; }
	}
	else {
		int range = 500;
		vel dp0 = r_no(0, range, a);
		vel dp1 = r_no(0, range - 1, a);
		int st1 = 0;
		for (int i = 2; i*range <= n - range; i++) {
			int st = (i - 1)*range;
			int to = i * range; mmax(st1, to);
			vel x0 = r_no(st, to, a);
			vel x1 = r_no(st + 1, to, a);
			vel qdp0 = com(dp1, x0); x0.clear();
			vel rdp0 = com(dp0, x1); x1.clear();
			vel y0 = r_no(st, to - 1, a);
			vel y1 = r_no(st + 1, to - 1, a);
			vel qdp1 = com(dp1, y0); y0.clear();
			vel rdp1 = com(dp0, y1); y1.clear();
			dp0 = vel(0);
			for (int i = 0; i<qdp0.size() ; i++) { dp0.push_back(max(qdp0[i], rdp0[i]));}
			dp1 = vel(0);
			for (int i = 0; i < rdp1.size(); i++) { dp1.push_back(max(qdp1[i], rdp1[i])); }
			dp1.push_back(qdp1[qdp1.size() - 1]);
		}
		vel x = r_no(st1, n, a);
		vel y = r_no(st1 + 1, n, a);
		vel qans = com(dp0, y);
		vel rans = com(dp1, x);
		for (int i = 1; i < ko; i++) { cout << max(qans[i], rans[i]) << endl; }
	}
	return 0;
}

Compilation message

candies.cpp: In function 'int main()':
candies.cpp:53:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int i = 1; i < x.size(); i++) { cout << x[i] << endl; }
                   ~~^~~~~~~~~~
candies.cpp:72:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int i = 0; i<qdp0.size() ; i++) { dp0.push_back(max(qdp0[i], rdp0[i]));}
                    ~^~~~~~~~~~~~
candies.cpp:74:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (int i = 0; i < rdp1.size(); i++) { dp1.push_back(max(qdp1[i], rdp1[i])); }
                    ~~^~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 384 KB Output is correct
2 Correct 9 ms 384 KB Output is correct
3 Correct 10 ms 512 KB Output is correct
4 Correct 7 ms 384 KB Output is correct
5 Correct 9 ms 384 KB Output is correct
6 Correct 9 ms 384 KB Output is correct
7 Correct 8 ms 512 KB Output is correct
8 Correct 7 ms 384 KB Output is correct
9 Correct 10 ms 384 KB Output is correct
10 Correct 7 ms 384 KB Output is correct
11 Correct 10 ms 384 KB Output is correct
12 Correct 8 ms 384 KB Output is correct
13 Correct 8 ms 384 KB Output is correct
14 Correct 8 ms 384 KB Output is correct
15 Correct 9 ms 356 KB Output is correct
16 Correct 12 ms 384 KB Output is correct
17 Correct 9 ms 384 KB Output is correct
18 Correct 8 ms 384 KB Output is correct
19 Correct 8 ms 384 KB Output is correct
20 Correct 12 ms 384 KB Output is correct

Subtask #2
92.0 / 92.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 384 KB Output is correct
2 Correct 9 ms 384 KB Output is correct
3 Correct 10 ms 512 KB Output is correct
4 Correct 7 ms 384 KB Output is correct
5 Correct 9 ms 384 KB Output is correct
6 Correct 9 ms 384 KB Output is correct
7 Correct 8 ms 512 KB Output is correct
8 Correct 7 ms 384 KB Output is correct
9 Correct 10 ms 384 KB Output is correct
10 Correct 7 ms 384 KB Output is correct
11 Correct 10 ms 384 KB Output is correct
12 Correct 8 ms 384 KB Output is correct
13 Correct 8 ms 384 KB Output is correct
14 Correct 8 ms 384 KB Output is correct
15 Correct 9 ms 356 KB Output is correct
16 Correct 12 ms 384 KB Output is correct
17 Correct 9 ms 384 KB Output is correct
18 Correct 8 ms 384 KB Output is correct
19 Correct 8 ms 384 KB Output is correct
20 Correct 12 ms 384 KB Output is correct
21 Correct 1521 ms 13096 KB Output is correct
22 Correct 1405 ms 13200 KB Output is correct
23 Correct 1567 ms 13032 KB Output is correct
24 Correct 1330 ms 12912 KB Output is correct
25 Correct 1320 ms 12976 KB Output is correct
26 Correct 1368 ms 12956 KB Output is correct
27 Correct 1328 ms 13292 KB Output is correct
28 Correct 1449 ms 13200 KB Output is correct
29 Correct 1315 ms 13144 KB Output is correct
30 Correct 1514 ms 13284 KB Output is correct
31 Correct 1411 ms 13188 KB Output is correct
32 Correct 1643 ms 13224 KB Output is correct
33 Correct 1184 ms 12952 KB Output is correct
34 Correct 1229 ms 13128 KB Output is correct
35 Correct 1448 ms 13048 KB Output is correct
36 Correct 1401 ms 13152 KB Output is correct
37 Correct 1440 ms 13180 KB Output is correct
38 Correct 1303 ms 13156 KB Output is correct
39 Correct 1224 ms 12904 KB Output is correct
40 Correct 1500 ms 12928 KB Output is correct
41 Correct 1273 ms 13032 KB Output is correct
42 Correct 1386 ms 13164 KB Output is correct
43 Correct 1434 ms 13080 KB Output is correct
44 Correct 1597 ms 13016 KB Output is correct
45 Correct 1627 ms 13256 KB Output is correct
46 Correct 1378 ms 13312 KB Output is correct
47 Correct 1540 ms 13084 KB Output is correct
48 Correct 1254 ms 12908 KB Output is correct
49 Correct 1520 ms 12820 KB Output is correct
50 Correct 1570 ms 12896 KB Output is correct