Submission #831404

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
831404	2023-08-20 08:29:55	BamshooT	Feast (NOI19_feast)	C++14	100 / 100	125 ms	12752 KiB

feast

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <iostream>
#define ll long long
#define FOR(i, a, b) for (int i = (a); i <= (b); ++i)
#define fi first
#define se second
#define inf 1e18
using namespace std;
typedef pair<ll, int> li;
const int N = 3e5 + 9;
int n, k;
ll pre[N], a[N], ans;
li dp[N];
void maximize(li &a, li b){
    if (a.fi < b.fi) a = b;
    if (a.fi == b.fi) a = max(a, b);
}
li calc(ll cost){
    //FOR(i, 1, n) dp[i] = {pre[i] - cost, 1};
    li best = {0, 0};
    for (int i = 1; i <= n; ++i) {
        dp[i] = dp[i-1];
        maximize(dp[i], {pre[i] + best.fi - cost, best.se + 1});
        maximize(best, {dp[i].fi - pre[i], dp[i].se});
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

feast.cpp: In function 'int main()':
feast.cpp:43:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   43 |         ll mid = lo + hi >> 1;
      |                  ~~~^~~~

• Subtask 1: 4 / 4
• Subtask 2: 8 / 8
• Subtask 3: 18 / 18
• Subtask 4: 10 / 10
• Subtask 5: 11 / 11
• Subtask 6: 20 / 20
• Subtask 7: 29 / 29