Submission #101166

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
101166	2019-03-17 07:25:47	autumn_eel	Skyscraper (JOI16_skyscraper)	C++14	20 / 100	321 ms	91128 KiB

skyscraper

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
#define MOD 1000000007
#define INF 0x3f3f3f3f
using namespace std;
typedef long long ll;
typedef pair<int,int>P;
int dp[1<<14][14][101];
int a[14];
int main(){
  int n,L;cin>>n>>L;
  if(n>14)abort();
  rep(i,n)scanf("%d",&a[i]);
  if(n<=8){
    vector<int>v;
    rep(i,n)v.push_back(i);
    int ans=0;
    do{
      int cnt=0;
      rep(i,v.size()-1){
        (cnt+=abs(a[v[i]]-a[v[i+1]]));
      }
      if(cnt<=L)ans++;
    }while(next_permutation(v.begin(),v.end()));
    cout<<ans<<endl;
    return 0;
  }
  rep(i,n)dp[1<<i][i][0]=1;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:2:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define rep(i,n)for(int i=0;i<(n);i++)
                              ^
skyscraper.cpp:22:4: note: in expansion of macro 'rep'
    rep(i,v.size()-1){
    ^~~
skyscraper.cpp:15:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  rep(i,n)scanf("%d",&a[i]);
          ~~~~~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 0 / 80