# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
133078 | Mahdi_Jfri | Teams (IOI15_teams) | C++14 | 1608 ms | 59304 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "teams.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
const int maxn = 5e5 + 20;
const int maxb = 20;
int dp[maxn] , n , l[maxn] , r[maxn];
int seg[maxb][maxn];
void build(int s = 0 , int e = n , int h = 0)
{
if(e - s < 2)
{
seg[h][s] = l[s];
return;
}
int m = (s + e) / 2;
build(s , m , h + 1);
build(m , e , h + 1);
merge(seg[h + 1] + s , seg[h + 1] + m , seg[h + 1] + m , seg[h + 1] + e , seg[h] + s);
}
int get(int l , int r , int val , int s = 0 , int e = n , int h = 0)
{
if(l <= s && e <= r)
return e - (lower_bound(seg[h] + s , seg[h] + e , val) - seg[h] - s);
if(r <= s || e <= l)
return 0;
int m = (s + e) / 2;
return get(l , r , val , s , m , h + 1) + get(l , r , val , m , e , h + 1);
}
void init(int N, int a[], int b[])
{
n = N;
vector<pair<int , int> > tmp;
for(int i = 0; i < n; i++)
{
l[i] = a[i] , r[i] = b[i];
tmp.pb({r[i] , -l[i]});
}
sort(tmp.begin() , tmp.end());
for(int i = 0; i < n; i++)
l[i] = -tmp[i].second , r[i] = tmp[i].first;
for(int i = 0; i < n; i++)
cout << l[i] << " " << r[i] << endl;
build();
}
int p[maxn] , t[maxn];
int can(int m, int k[])
{
sort(k , k + m);
for(int i = 0; i < m; i++)
t[k[i]] = 0;
int sum = 0;
for(int i = 1; i <= m; i++)
{
p[i] = k[i - 1];
sum += p[i];
if(sum > n)
return 0;
t[p[i]]++;
}
m = unique(p + 1 , p + m + 1) - p - 1;
p[0] = 0;
dp[0] = 0;
for(int i = 1; i <= m; i++)
{
dp[i] = -1e9;
int x = lower_bound(r , r + n , p[i]) - r;
for(int j = i - 1; j >= 0; j--)
dp[i] = max(dp[i] , dp[j] + get(0 , x , p[j] + 1));
dp[i] += t[p[i]] * p[i];
if(dp[i] + get(0 , n , p[i] + 1) - n > 0)
return 0;
}
return 1;
}
Compilation message (stderr)
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