oj.uz

Submission #143424

# Submission time Handle Problem Language Result Execution time Memory
143424 2019-08-14T02:44:12 Z Ort Rasvjeta (COCI17_rasvjeta) C++11
50 / 50
 3 ms 504 KB 
#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
#include<ext/rope>
#define MEM(a, b) memset(a, (b), sizeof(a))
#define ALL(c) (c).begin(),(c).end()
#define sz(a) ((int)(a.size()))
#define ll long long
#define LINF (ll)1e18
#define INF (int)1e9
#define MINF 0x3F3F3F3F
#define pb push_back
#define fs first
#define sc second
#define mp make_pair
#define MOD 1000000007
#define IO ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
#define MAX 2500
#define watch(x) cerr<<#x<<" = "<<(x)<<endl;

using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;

template<class T> using indexed_set = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

int n, m, k, x, c, sol, r;
int arr[MAX];
double d;
 
int main() {
	cin >> n >> m >> k;
	for(int i=0;i<m;i++) {
		cin >> x;
		for(int i=max(1, x-k);i<=x+k;i++) arr[i]++;
	}
	for(int i=1;i<=n;i++) {
		if(arr[i]==0) c++;
		if(arr[i] && c) {
			d = (double)c/((k<<1)+1);
			sol += int(ceil(d));
			c = 0;
		}
	}
	d = (double)c/((k<<1)+1);
	sol += int(ceil(d));
	cout << sol;
	return 0;
}

Subtask #1
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 256 KB Output is correct
9 Correct 2 ms 256 KB Output is correct
10 Correct 2 ms 376 KB Output is correct