Submission #286353

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
286353	2020-08-30 10:19:00	TadijaSebez	Constellation 3 (JOI20_constellation3)	C++11	35 / 100	1599 ms	157120 KiB

constellation3

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#include <bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define ll long long
#define pb push_back
const int N=200050;
const int L=20;
int a[N],lgs[N],n;
pii rmq[N][L];
pii Get(int l,int r){
  int k=lgs[r-l+1];
  return max(rmq[l][k],rmq[r-(1<<k)+1][k]);
}
pii GetRng(int x,int y){
  int top=x,bot=1,mid,L=0,R=n+1;
  while(top>=bot){
    mid=top+bot>>1;
    if(Get(mid,x).first>=y)L=mid,bot=mid+1;
    else top=mid-1;
  }
  top=n,bot=x;
  while(top>=bot){
    mid=top+bot>>1;
    if(Get(x,mid).first>=y)R=mid,top=mid-1;
    else bot=mid+1;
  }
  return {L,R};
}
int x[N],y[N],c[N];
map<pii,vector<int>> stars;
 
 
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Compilation message (stderr)

constellation3.cpp: In function 'std::pair<int, int> GetRng(int, int)':
constellation3.cpp:17:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   17 |   mid=top+bot>>1;
      |       ~~~^~~~
constellation3.cpp:23:10: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 |   mid=top+bot>>1;
      |       ~~~^~~~
constellation3.cpp: In function 'int main()':
constellation3.cpp:79:41: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   79 |    rmq[i][j]=max(rmq[i][j-1],rmq[i+(1<<j-1)][j-1]);
      |                                        ~^~
constellation3.cpp:74:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   74 |  scanf("%i",&n);
      |  ~~~~~^~~~~~~~~
constellation3.cpp:75:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   75 |  for(int i=1;i<=n;i++)scanf("%i",&a[i]),rmq[i][0]={a[i],i};//,idx[a[i]].pb(i);
      |                       ~~~~~^~~~~~~~~~~~
constellation3.cpp:85:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   85 |  scanf("%i",&m);
      |  ~~~~~^~~~~~~~~
constellation3.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   87 |   scanf("%i %i %i",&x[i],&y[i],&c[i]);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 14 / 14
• Subtask 2: 21 / 21
• Subtask 3: 0 / 65