Submission #37925

#	Time	Username	Problem	Language	Result	Execution time	Memory
37925		Just_Solve_The_Problem	K blocks (IZhO14_blocks)	C++11	18 / 100	1000 ms	5140 KiB

blocks

#include <bits/stdc++.h>

using namespace std;

#define ll long long

const int N = (int)1e5 + 7;

int a[N];
ll ans = 1e14;
int n, k;
vector < int > dns;

void go (int pos, int mx, ll sum = 0, int kk = 1, vector < int > vec = vector < int > ()) {
    mx = max(mx, a[pos]);
    if (pos == n + 1) {
        if (kk == k) {
            if (ans > sum + mx) {
                ans = sum + mx;
                dns = vec;
            }
        }
        return ;
    }
    if (kk + 1 <= k && pos != n) {
        vec.push_back(pos);
        go(pos + 1, 0, sum + mx, kk + 1, vec);
        vec.pop_back();
    }
    go(pos + 1, mx, sum, kk, vec);
}

main() {
    scanf ("%d %d", &n, &k);
    for (int i = 1; i <= n; i++) {
        scanf ("%d", a + i);
    }
    go(1, 0);
    cout << ans << endl;
//    for (int to : dns) {
//        cout << to << ' ' ;
//    }
}

Compilation message (stderr)

blocks.cpp:33:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
blocks.cpp: In function 'int main()':
blocks.cpp:34:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf ("%d %d", &n, &k);
                            ^
blocks.cpp:36:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf ("%d", a + i);
                            ^

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