#include <bits/stdc++.h>
#define debug(x) cerr << #x << " " << x << "\n"
#define debugs(x) cerr << #x << " " << x << " "
using namespace std;
typedef long long ll;
typedef pair <ll, ll> pii;
const ll NMAX = 100001;
const ll nr_of_bits = 16;
const ll MOD = 1000000007;
ll cnt[NMAX][2];
ll dp[NMAX][2];
ll n, k;
ll v[NMAX];
pii OK(ll cost){
for(ll i = 1; i <= n; i++){
if(dp[i - 1][1] - cost > dp[i - 1][0]){
cnt[i][0] = cnt[i - 1][1] + 1;
dp[i][0] = dp[i - 1][1] - cost;
}else{
cnt[i][0] = cnt[i - 1][0];
dp[i][0] = dp[i - 1][0];
}
if(dp[i - 1][1] > dp[i - 1][0]){
cnt[i][1] = cnt[i - 1][1];
dp[i][1] = dp[i - 1][1] + v[i];
}else{
cnt[i][1] = cnt[i - 1][0];
dp[i][1] = dp[i - 1][0] + v[i];
}
}
ll cfinal, dfinal;
if(dp[n][1] - cost > dp[n][0]){
dfinal = dp[n][1] - cost;
cfinal = cnt[n][1] + 1;
}else{
dfinal = dp[n][0];
cfinal = cnt[n][0];
}
return {dfinal + cost * k, cfinal};
}
int main() {
//ifstream cin(".in");
//ofstream cout(".out");
ll i;
cin >> n;
cin >> k;
for(i = 1; i <= n; i++){
cin >> v[i];
}
ll r = 0, pas = (1 << 30);
while(pas){
if(OK(r + pas).second > k)
r += pas;
pas /= 2;
}
if(OK(r).second > k)
r++;
cout << OK(r).first;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1071 ms |
5380 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
24 ms |
1692 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1073 ms |
5560 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
300 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
300 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
300 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1071 ms |
5380 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |