oj.uz

Submission #800166

# Submission time Handle Problem Language Result Execution time Memory
800166 2023-08-01T11:09:42 Z lollipop Comparing Plants (IOI20_plants) C++17
14 / 100
 4000 ms 5792 KB 
#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>
#define ll long long
#define pb push_back
#define s second
#define f first
#define pf push_front
#define inf 100000000000000000
#define bitebi __builtin_popcountll
#define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
#define YES cout <<"YES\n"
#define NO cout << "NO\n"
#define debug cout << "Here Fine" << endl ;
#define pr pair < int , int >
#define fbo find_by_order // returns iterator
#define ook order_of_key // returns strictly less numbers than key
using namespace std ;
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,fma")
using namespace __gnu_pbds;
using namespace __gnu_cxx;
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
const double Pi=acos(-1.0);
const double EPS=1E-8;
const int mod =  1000000007 ;
const int mod1 = 998244353 ;
const int NN = 2e5 + 10 ;
mt19937 R(time(0));
map < int , int > ma , ma1 ;

#include "plants.h"

int tt = 2 ;
vector < int > v ; 
int sm[ 300000 ] ;
int case1( int x , int y ){
    int n = v.size() ;
    int cc = 0 ;
    int tt = 1 ;
    if( x > y ) tt = -1 , swap( x , y ) ;
    int ss = sm[ y - 1 ] ;
    if( x != 0 ) ss -= sm[ x - 1 ] ;
    int pas = 0 ;
    if( x == 0 && y == n - 1 ){
        if( v[ y ] == 1 ) pas = 1 ;
        else pas = -1 ;
    }
    else{
      if( ss == 0 ) pas = 1 ;
      else{
        if( ss != ( y - x ) ){
            int ss1 = sm[ v.size() - 1 ] - sm[ y - 1 ] ;
            if( x != 0 )
            ss1 = ss1 + sm[ x - 1 ] ;
            int len = v.size() - y ;
            len += x ;
            if( ss1 == 0 ){
                pas = 0 ; 
            }
            else if( ss1 == len ) pas = 1 ;
            else 
            if( len != ss1 ) pas = 0 ;
        }
        else pas = -1 ;
      }
    }
    pas *= tt ;
    return pas ;
    
    // if( x < y ){
    //     if( x == 0 && y != n - 1 && y != 1 ) return 0 ;
    //     if( x == 0 && y == n - 1 ){
    //        if( v[ y ] == 0 ) return -1 ;
    //        else return 1 ;
    //     }
    //     if( x + 1 != y ) return 0 ;
    //     if( v[ x ] == 0 ) return 1 ;
    //     else return -1 ;
    // }
    // swap( x , y ) ;
    //     if( x == 0 && y != n - 1 && y != 1 ) return 0 ;
    //     if( x == 0 && y == n - 1 ){
    //        if( v[ y ] == 0 ) return 1 ;
    //        else return -1 ;
    //     }
    //     if( x + 1 != y ) return 0 ;
    //     if( v[ x ] == 0 ) return -1 ;
    //     else return 1 ;  
}
int a[ 300000 ] ;
int been[ 300000 ] ;
int case2( int x , int y ){
    if( a[ x ] < a[ y ] )return -1 ;
    else return 1 ;

}
void init(int k, std::vector<int> r){
     tt = k ; 
     if( k == 2 ){
       FOR( i , v.size() ){
        if( i != 0 ) sm[ i ] = sm[ i - 1 ] ;
        sm[ i ] = sm[ i ] + v[ i ] ; 
       }
       v = r ; return ;
     }     
     int cnt = 0 ;
     int nn = r.size() ;
     FOR( i , nn ) been[ i ] = 0 ;
     int cur = nn - 1 ; 
     while( true ){
        if( cnt == nn - 1 ){
            FOR( i , nn ) if( been[ i ] == 0 ){
                a[ i ] = 0 ; break ;
            }
            break ; 
        }
        vector < int > v ;
        FOR( i , nn ){
            if( r[ i ] == 0 ) v.pb( i ) ; 
        }
        int x = v[ 0 ] ;
        if( v.size() != 1 ){
           pair < int , int > mx ;
           mx.f = -1 ;
           FOR( i , v.size() ){
             if( i == 0 ){
              int cur = v[ i ] + ( nn - 1 - v[ v.size() - 1 ] ) ;
              if( cur > mx.f ){
                mx = { cur , v[ i ] } ; 
              }
             }
             else{
              int cur = v[ i ] - v[ i - 1 ] - 1 ;
              if( cur > mx.f ){
                mx = { cur , v[ i ] } ; 
              }
             }
           }
           x = mx.s ; 
        }
        been[ x ] = 1 ;
        a[ x ] = cur ; 
        r[ x ] = -1 ; 
        int pos = x - 1 ;
        int kk = k - 1 ; 
        while( kk -- ){           
            if( pos < 0 ) pos = nn - 1 ;
           r[ pos ] -- ;
           pos -- ;

        }
        cnt ++ ; cur -- ;
     }
}

int compare_plants(int x, int y){
    if( tt == 2 ) return case1( x , y ) ;
    else return case2( x , y ) ;
}


// static int n, k, q;
// static std::vector<int> r;
// static std:: vector<int> x;
// static std:: vector<int> y;
// static std:: vector<int> answer;
// int main() {
// 	assert(scanf("%d%d%d", &n, &k, &q) == 3);
// 	r.resize(n);
// 	answer.resize(q);
// 	for (int i = 0; i < n; i++) {
// 		int value;
// 		assert(scanf("%d", &value) == 1);
// 		r[i] = value;
// 	}
// 	x.resize(q);
// 	y.resize(q);
// 	for (int i = 0; i < q; i++) {
// 		assert(scanf("%d%d", &x[i], &y[i]) == 2);
// 	}

// 	init(k, r);
// 	for (int i = 0; i < q; i++) {
// 		answer[i] = compare_plants(x[i], y[i]);
// 	}


// 	for (int i = 0; i < q; i++) {
// 		printf("%d\n", answer[i]);
// 	}


// 	return 0;
// }

Compilation message

plants.cpp: In function 'int case1(int, int)':
plants.cpp:40:9: warning: unused variable 'cc' [-Wunused-variable]
   40 |     int cc = 0 ;
      |         ^~
plants.cpp: In function 'void init(int, std::vector<int>)':
plants.cpp:12:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
  102 |        FOR( i , v.size() ){
      |             ~~~~~~~~~~~~                 
plants.cpp:102:8: note: in expansion of macro 'FOR'
  102 |        FOR( i , v.size() ){
      |        ^~~
plants.cpp:12:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 | #define FOR( i , n ) for( int i = 0 ; i < n ; i ++ )
......
  127 |            FOR( i , v.size() ){
      |                 ~~~~~~~~~~~~             
plants.cpp:127:12: note: in expansion of macro 'FOR'
  127 |            FOR( i , v.size() ){
      |            ^~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 122 ms 3128 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 5 ms 340 KB Output is correct
10 Correct 123 ms 3124 KB Output is correct
11 Correct 124 ms 3148 KB Output is correct
12 Correct 114 ms 3456 KB Output is correct
13 Correct 127 ms 3132 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 122 ms 3128 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 5 ms 340 KB Output is correct
10 Correct 123 ms 3124 KB Output is correct
11 Correct 124 ms 3148 KB Output is correct
12 Correct 114 ms 3456 KB Output is correct
13 Correct 127 ms 3132 KB Output is correct
14 Correct 1250 ms 3352 KB Output is correct
15 Execution timed out 4064 ms 5792 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 1 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Incorrect 0 ms 212 KB Output isn't correct
4 Halted 0 ms 0 KB -