oj.uz

Submission #138040

# Submission time Handle Problem Language Result Execution time Memory
138040 2019-07-29T06:34:50 Z rajarshi_basu Cake 3 (JOI19_cake3) C++14
24 / 100
 4000 ms 10456 KB 
#include <bits/stdc++.h>

#define FOR(i,n) for(int i=0;i<n;i++)
#define FORE(i,a,b) for(int i = a;i<=b;i++)
#define ll long long int
#define pb push_back
#define vi vector<int>
#define ff first
#define ss second
#define vv vector
#define ii pair<int,int>

using namespace std;

const int MAXN = 2e5 + 1;
const ll INF = 1e17;

int n,m;

ll color[MAXN];
ll v[MAXN];

ll dp[MAXN];
int lptr;
int rptr;

ll cost(int l,int r){
	vv<ll> a;
	FORE(i,l,r)a.pb(v[i]);
	sort(a.begin(),a.end());reverse(a.begin(),a.end());
	if(a.size() < m)return -INF;
	ll sum = 0;
	FOR(i,m)sum += a[i];
	return sum;
}

void recurse(int l,int r,int x,int y){
	int mid = (l+r)/2;
	ll mx = -INF;
	int optj = x;
	FORE(i,x,min(mid,y)){
		ll cst = cost(i,mid) - 2*(color[mid] - color[i]);
		if(cst > mx){
			optj = i;
			mx = cst;
		}
	}
	dp[mid] = mx;
	if(l == r)return;
	recurse(l,mid,x,optj);
	recurse(mid+1,r,optj,y);
}

int main(){
	cin >> n >> m;
	vv<ii> all;
	FOR(i,n){
		int a,b;
		cin >> a >> b;
		all.pb({b,a});
	}
	sort(all.begin(),all.end());
	FOR(i,n)color[i] = all[i].ff,v[i] = all[i].ss;
	recurse(0,n-1,0,n-1);
	ll mx = -INF;
	FOR(i,n){
		mx = max(mx,dp[i]);
	}
	cout << mx << endl;
	return 0;
}

Compilation message

cake3.cpp: In function 'long long int cost(int, int)':
cake3.cpp:31:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(a.size() < m)return -INF;
     ~~~~~~~~~^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 4 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 380 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 4 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 292 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 3 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 3 ms 380 KB Output is correct
29 Correct 3 ms 376 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 3 ms 376 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 4 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 4 ms 376 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 4 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 380 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 4 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 292 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 3 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 3 ms 380 KB Output is correct
29 Correct 3 ms 376 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 3 ms 376 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 4 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 4 ms 376 KB Output is correct
38 Correct 1070 ms 508 KB Output is correct
39 Correct 1211 ms 508 KB Output is correct
40 Correct 1134 ms 636 KB Output is correct
41 Correct 1118 ms 632 KB Output is correct
42 Correct 1150 ms 508 KB Output is correct
43 Correct 1010 ms 520 KB Output is correct
44 Correct 744 ms 512 KB Output is correct
45 Correct 813 ms 504 KB Output is correct
46 Correct 829 ms 632 KB Output is correct
47 Correct 675 ms 520 KB Output is correct
48 Correct 661 ms 604 KB Output is correct
49 Correct 932 ms 628 KB Output is correct
50 Correct 908 ms 508 KB Output is correct
51 Correct 915 ms 636 KB Output is correct
52 Correct 885 ms 504 KB Output is correct
53 Correct 924 ms 632 KB Output is correct
54 Correct 1107 ms 548 KB Output is correct
55 Correct 1118 ms 508 KB Output is correct
56 Correct 1075 ms 536 KB Output is correct
57 Correct 1039 ms 504 KB Output is correct
58 Correct 1046 ms 504 KB Output is correct
59 Correct 175 ms 532 KB Output is correct
60 Correct 191 ms 504 KB Output is correct
61 Correct 195 ms 496 KB Output is correct
62 Correct 255 ms 632 KB Output is correct
63 Correct 339 ms 508 KB Output is correct
64 Correct 215 ms 504 KB Output is correct
65 Correct 490 ms 660 KB Output is correct
66 Correct 516 ms 544 KB Output is correct
67 Correct 557 ms 504 KB Output is correct
68 Correct 713 ms 632 KB Output is correct
69 Correct 679 ms 512 KB Output is correct
70 Correct 613 ms 508 KB Output is correct
71 Correct 297 ms 508 KB Output is correct
72 Correct 643 ms 604 KB Output is correct
73 Correct 287 ms 624 KB Output is correct
74 Correct 1256 ms 504 KB Output is correct

Subtask #3
0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 4 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 3 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 380 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 4 ms 376 KB Output is correct
19 Correct 3 ms 376 KB Output is correct
20 Correct 4 ms 376 KB Output is correct
21 Correct 3 ms 376 KB Output is correct
22 Correct 3 ms 292 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 3 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 3 ms 376 KB Output is correct
27 Correct 3 ms 376 KB Output is correct
28 Correct 3 ms 380 KB Output is correct
29 Correct 3 ms 376 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 3 ms 376 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 4 ms 376 KB Output is correct
35 Correct 3 ms 376 KB Output is correct
36 Correct 3 ms 376 KB Output is correct
37 Correct 4 ms 376 KB Output is correct
38 Correct 1070 ms 508 KB Output is correct
39 Correct 1211 ms 508 KB Output is correct
40 Correct 1134 ms 636 KB Output is correct
41 Correct 1118 ms 632 KB Output is correct
42 Correct 1150 ms 508 KB Output is correct
43 Correct 1010 ms 520 KB Output is correct
44 Correct 744 ms 512 KB Output is correct
45 Correct 813 ms 504 KB Output is correct
46 Correct 829 ms 632 KB Output is correct
47 Correct 675 ms 520 KB Output is correct
48 Correct 661 ms 604 KB Output is correct
49 Correct 932 ms 628 KB Output is correct
50 Correct 908 ms 508 KB Output is correct
51 Correct 915 ms 636 KB Output is correct
52 Correct 885 ms 504 KB Output is correct
53 Correct 924 ms 632 KB Output is correct
54 Correct 1107 ms 548 KB Output is correct
55 Correct 1118 ms 508 KB Output is correct
56 Correct 1075 ms 536 KB Output is correct
57 Correct 1039 ms 504 KB Output is correct
58 Correct 1046 ms 504 KB Output is correct
59 Correct 175 ms 532 KB Output is correct
60 Correct 191 ms 504 KB Output is correct
61 Correct 195 ms 496 KB Output is correct
62 Correct 255 ms 632 KB Output is correct
63 Correct 339 ms 508 KB Output is correct
64 Correct 215 ms 504 KB Output is correct
65 Correct 490 ms 660 KB Output is correct
66 Correct 516 ms 544 KB Output is correct
67 Correct 557 ms 504 KB Output is correct
68 Correct 713 ms 632 KB Output is correct
69 Correct 679 ms 512 KB Output is correct
70 Correct 613 ms 508 KB Output is correct
71 Correct 297 ms 508 KB Output is correct
72 Correct 643 ms 604 KB Output is correct
73 Correct 287 ms 624 KB Output is correct
74 Correct 1256 ms 504 KB Output is correct
75 Execution timed out 4030 ms 10456 KB Time limit exceeded
76 Halted 0 ms 0 KB -