Submission #354196

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
354196	2021-01-21 14:30:59	juggernaut	Counting Mushrooms (IOI20_mushrooms)	C++14	100 / 100	10 ms	512 KiB

mushrooms

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"mushrooms.h"
#ifndef EVAL
#include"stub.cpp"
#endif
#include<bits/stdc++.h>
using namespace std;
int count_mushrooms(int n){
  vector<int>a,b;
  a.push_back(0);
  int id=1;
  while(max(a.size(),b.size())<110&&id<n){
        if(a.size()>=3&&b.size()>=2&&id+4<n){
            int ans1=use_machine({a[0],id,a[1],id+1,a[2],id+2});
            if(ans1&1)b.push_back(id+2);
            else a.push_back(id+2);
            ans1>>=1;
            if(ans1==0){
                a.push_back(id);
                a.push_back(id+1);
                id+=3;
            }else if(ans1==2){
                b.push_back(id);
                b.push_back(id+1);
                id+=3;
            }else{
                int ans2=use_machine({b[0],id,b[1],a[0],id+1,a[1],id+3,a[2],id+4})-1;
                if(ans2&1)b.push_back(id+4);
                else a.push_back(id+4);
                ans2>>=1;
                if(ans2&1)b.push_back(id+3);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:98:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   98 |             for(int i=0;i<a.size()&&id<n;i++){
      |                         ~^~~~~~~~~
mushrooms.cpp:110:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  110 |             for(int i=0;i<b.size()&&id<n;i++){
      |                         ~^~~~~~~~~

• Subtask 1: 100 / 100