Submission #139290

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
139290	2019-07-31 14:10:06	Mahmoud_Adel	Cake 3 (JOI19_cake3)	C++14	100 / 100	1206 ms	140380 KiB

cake3

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#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;
typedef long long ll;
const int N = 2e5+5;
ll n, k, cn, ans = -1e18;
ll root[N], lc[N*40], b[N], rc[N*40];
pair<ll, ll> tree[N*40];
vector<pair<ll, ll>> comp;
pair<ll, ll> p[N];
void merge(int node)
{
  tree[node].f = tree[lc[node]].f+tree[rc[node]].f;
  tree[node].s = tree[lc[node]].s+tree[rc[node]].s;
}
void build(int node = 0, int l=0, int r=n-1)
{
  if(l == r)
  {
    tree[node] = {1, comp[l].f};
    //cout << node << " " << tree[node].f << " " << tree[node].s << " | " << l << " " << r << endl;
    return ;
  }
  int mid = (l+r)>>1;
  lc[node] = ++cn, rc[node] = ++cn;
  build(lc[node], l, mid);
  build(rc[node], mid+1, r);
  merge(node);
  //cout << node << " " << tree[node].f << " " << tree[node].s << " | " << l << " " << r << endl;
 
 
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Compilation message (stderr)

cake3.cpp: In function 'int main()':
cake3.cpp:105:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0; i<n; i++) scanf("%lld %lld", &p[i].f, &p[i].s);
                         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 19 / 19
• Subtask 3: 76 / 76