Submission #93373

#	Time	Username	Problem	Language	Result	Execution time	Memory
93373		inom	K blocks (IZhO14_blocks)	C++14	53 / 100	2 ms	380 KiB

blocks

#include<bits/stdc++.h>
#include<ext/pb_ds/tree_policy.hpp>
#include<ext/pb_ds/assoc_container.hpp>

#define fi first
#define se second
#define new new228
#define pb push_back
#define rank rank228
#define int long long
#define sz(c) (int)(c).size()
#define all(c) (c).begin(), (c).end()
#define rall(c) (c).rbegin(), (c).rend()
 
using namespace std;
using namespace __gnu_pbds;
 
#pragma GCC optimize("Ofast")
#pragma GCC optimize("no-stack-protector")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,popcnt,abm,mmx,tune=native")
#pragma GCC optimize("fast-math")
#pragma warning(disable : 4996)
 
typedef tree<int, null_type, less_equal<int>, rb_tree_tag, tree_order_statistics_node_update> ordered_set; // st.oreder_of_key();

const int N = 110;
const int INF = 1e15 + 7;
const int MAXN = 100100;
const int MOD = 998244353;
 
int TN = 1;

int n, m;
int a[N];
int dp[MAXN][N];

void solve() {
    scanf("%lld %lld", &n, &m);
    for (int i = 1; i <= n; i++) 
        scanf("%lld", a + i);
    for (int i = 0; i <= n; i++) 
        for (int j = 0; j <= m; j++) 
            dp[i][j] = INF;
    dp[1][1] = a[1];
    for (int i = 2; i <= n; i++) {
        dp[i][1] = max(dp[i - 1][1], a[i]);
        for (int k = 2; k <= min(i, m); k++) {
            int mx = 0;
            dp[i][k] = dp[i - 1][k - 1] + a[i];
            for (int j = i - 1; j >= 1; j--) {
                if (j < k - 1) break;
                mx = max(mx, a[j + 1]);
                dp[i][k] = min(dp[i][k], dp[j][k - 1] + mx);
            }
        }
    }
    printf("%lld", dp[n][m]);
    return;
}

signed main() {
    // in; out; // cin >> TN;
    while (TN--) { solve(); }
    return 0;
}

Compilation message (stderr)

blocks.cpp:23:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning(disable : 4996)
 
blocks.cpp: In function 'void solve()':
blocks.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld %lld", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~
blocks.cpp:41:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld", a + i);
         ~~~~~^~~~~~~~~~~~~~~

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