Submission #100799

#	Time	Username	Problem	Language	Result	Execution time	Memory
100799		1Khan	K blocks (IZhO14_blocks)	C++14	18 / 100	1071 ms	1268 KiB

blocks

// In the name of GOD

#include <bits/stdc++.h>

using namespace std;

#define BeGood ios_base :: sync_with_stdio(0), cin.tie(0), cout.tie(0);
#define nl '\n'
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()

typedef long long ll;
typedef double db;

const int N = 1e5 + 101;
const ll M = 1e13 + 7;

int n, k;
int a[N];
map<pair<int, int>, int> m;
long long man(int id, int al){
     if(al < 0){
          m[{id, al}] = M;
          return M;
     }
     if(id > n){
          if(al == 0){
               m[{id, al}] = 1;
               return 0;
          }
          m[{id, al}] = M;
          return M;
     }
     if(m[{id, al}] > 0){
          return m[{id, al}] - 1;
     }
     long long ans = M;
     int mx = 0;
     for(int i = id; i <= n; ++i){
          mx = max(mx, a[i]);
          ans = min(ans, man(i + 1, al - 1) + mx);
     }
     return ans;
}
int main(){

     BeGood

     cin >> n >> k;
     for(int i = 1; i <= n; ++i){
          cin >> a[i];
     }
     cout << man(1, k);
     return 0;
}

Compilation message (stderr)

blocks.cpp: In function 'long long int man(int, int)':
blocks.cpp:27:25: warning: overflow in implicit constant conversion [-Woverflow]
           m[{id, al}] = M;
                         ^
blocks.cpp:35:25: warning: overflow in implicit constant conversion [-Woverflow]
           m[{id, al}] = M;
                         ^

• Subtask 1: 0 / 14
• Subtask 2: 18 / 18
• Subtask 3: 0 / 21
• Subtask 4: 0 / 47