oj.uz

Submission #313229

# Submission time Handle Problem Language Result Execution time Memory
313229 2020-10-15T15:04:21 Z DanerZein Comparing Plants (IOI20_plants) C++14
5 / 100
 370 ms 9980 KB 
#include "plants.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;
int val[400010],tree[1600000],n;
void init(int node,int a,int b){
  if(a==b){
    tree[node]=val[a];
    return;
  }
  int mid=(a+b)/2;
  init(2*node+1,a,mid);
  init(2*node+2,mid+1,b);
  if(tree[2*node+1]==tree[2*node+2]){
    if(tree[2*node+1]==-1) tree[node]=-1;
    else tree[node]=tree[2*node+1];
  }
  else{
    tree[node]=-1;
  }
}
int query(int node,int a,int b,int l,int r){
  if(a>r or b<l) return -2;
  if(l<=a and b<=r) return tree[node];
  int mid=(a+b)/2;
  int le=query(2*node+1,a,mid,l,r);
  int ri=query(2*node+2,mid+1,b,l,r);
  if(le==-2 || ri==-2){
    if(le==-2) return ri;
    else return le;
  }
  if(le==ri){
    if(le==-1) return -1;
    else return le;
  }
  else return -1;
}
void init(int k, std::vector<int> r) {
  int j=0;
  for(int i=0;i<r.size();i++){
    val[j]=r[i];
    //cout<<val[j]<<" ";
    j++;
  }
  for(int i=0;i<r.size();i++){
    val[j]=r[i];
    // cout<<val[j]<<" ";
    j++;
  }
  //cout<<j<<endl;
  n=j;
  init(0,0,n-1);
}

int compare_plants(int x, int y) {
  int o1,o2;
  int l1,l2;
  int aux=n/2;
  l1=((y-x)+aux)%aux;
  l2=((x-y)+aux)%aux;
  l1+=x;
  l2+=y;
  o1=query(0,0,n-1,x,l1-1);
  o2=query(0,0,n-1,y,l2-1);
  //cout<<o1<<" "<<o2<<" "<<x<<" - "<<l1<<" "<<y<<" - "<<l2<<endl;
  if(o1==o2 and o1==-1){
    return 0;
  }
  if(o1!=-1){
    if(o1==1) return -1;
    else return 1;
  }
  if(o2!=-1){
    if(o2==1) return 1;
    else return -1;
  }
}

Compilation message

plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:40:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |   for(int i=0;i<r.size();i++){
      |               ~^~~~~~~~~
plants.cpp:45:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |   for(int i=0;i<r.size();i++){
      |               ~^~~~~~~~~
plants.cpp: In function 'int compare_plants(int, int)':
plants.cpp:77:1: warning: control reaches end of non-void function [-Wreturn-type]
   77 | }
      | ^

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 103 ms 3192 KB Output is correct
7 Correct 244 ms 3960 KB Output is correct
8 Correct 324 ms 9848 KB Output is correct
9 Correct 339 ms 9848 KB Output is correct
10 Correct 348 ms 9980 KB Output is correct
11 Correct 362 ms 9848 KB Output is correct
12 Correct 370 ms 9976 KB Output is correct
13 Correct 352 ms 9848 KB Output is correct
14 Correct 353 ms 9848 KB Output is correct

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Incorrect 1 ms 384 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Incorrect 1 ms 256 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Incorrect 0 ms 384 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Incorrect 0 ms 256 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 0 ms 256 KB Output is correct
6 Correct 103 ms 3192 KB Output is correct
7 Correct 244 ms 3960 KB Output is correct
8 Correct 324 ms 9848 KB Output is correct
9 Correct 339 ms 9848 KB Output is correct
10 Correct 348 ms 9980 KB Output is correct
11 Correct 362 ms 9848 KB Output is correct
12 Correct 370 ms 9976 KB Output is correct
13 Correct 352 ms 9848 KB Output is correct
14 Correct 353 ms 9848 KB Output is correct
15 Correct 0 ms 256 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Incorrect 1 ms 384 KB Output isn't correct
18 Halted 0 ms 0 KB -