| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 872286 | 2023-11-12T17:12:03 Z | Lib | Rarest Insects (IOI22_insects) | C++17 | 113 ms | 1364 KB |
#include <bits/stdc++.h>
#include "insects.h"
//#include "stub.cpp"
using namespace std;
int l,r,mid;
vector <int> PrevIndexIn,PrevIndexOut,RemainingInsects;
int InMachine[2003];
int n;
int TypeCount=0;
int CurrentInMachine=0;
int PossibleMincount(int cnt){
PrevIndexIn.clear();
PrevIndexOut.clear();
//Pushing insects inside the machine, keeping track of the ones being putted inside for this iteration of binary searching
for(int i=0;i<RemainingInsects.size();i++){
move_inside(RemainingInsects[i]);
InMachine[RemainingInsects[i]]=1;
PrevIndexIn.push_back(RemainingInsects[i]);
CurrentInMachine++;
if(press_button()>cnt){
PrevIndexIn.pop_back();
PrevIndexOut.push_back(RemainingInsects[i]);
InMachine[RemainingInsects[i]]=0;
move_outside(RemainingInsects[i]);
CurrentInMachine--;
}
}
RemainingInsects.clear();
if(CurrentInMachine<cnt*TypeCount){
//There clearly exist a type of insect with cardinality less than cnt, so the answer is less than cnt. Removing insects from last iteration.
while(!PrevIndexIn.empty()){
InMachine[PrevIndexIn.back()]=0;
move_outside(PrevIndexIn.back());
PrevIndexOut.push_back(PrevIndexIn.back());
PrevIndexIn.pop_back();
CurrentInMachine--;
}
RemainingInsects=PrevIndexOut;
return 0;
}else if(CurrentInMachine==cnt*TypeCount){
//As every type of insects has at least cnt insects, the answer is at least cnt. Just return true
RemainingInsects=PrevIndexOut;
PrevIndexIn.clear();
return 1;
}
}
int min_cardinality(int N){
//Remember to initialize as this is multitest
for(int i=0;i<N;i++){
InMachine[i]=0;
}
PrevIndexIn.clear();
PrevIndexOut.clear();
RemainingInsects.clear();
n=N;
l=1;
//Phase 1: Determining the amount of different types of insects
TypeCount=0;
CurrentInMachine=0;
for(int i=0;i<n;i++){
move_inside(i);
InMachine[i]=1;
CurrentInMachine++;
if(press_button()>1){
move_outside(i);
InMachine[i]=0;
CurrentInMachine--;
}else{
TypeCount++;
}
}
for(int i=0;i<n;i++){
if(!InMachine[i]){
RemainingInsects.push_back(i);
}
}
r=(n);
//Phase 2: Binary search for the answer
while(r-l>=1){
mid=(l+r+1)/2;
if(PossibleMincount(mid)){
l=mid;
}else{
r=mid-1;
}
}
return l;
}
Compilation message
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 344 KB | Output is correct |
| 2 | Correct | 0 ms | 344 KB | Output is correct |
| 3 | Correct | 0 ms | 344 KB | Output is correct |
| 4 | Correct | 0 ms | 344 KB | Output is correct |
| 5 | Correct | 0 ms | 344 KB | Output is correct |
| 6 | Correct | 2 ms | 596 KB | Output is correct |
| 7 | Correct | 1 ms | 344 KB | Output is correct |
| 8 | Correct | 4 ms | 344 KB | Output is correct |
| 9 | Correct | 6 ms | 600 KB | Output is correct |
| 10 | Correct | 6 ms | 344 KB | Output is correct |
| 11 | Correct | 4 ms | 600 KB | Output is correct |
| 12 | Correct | 7 ms | 600 KB | Output is correct |
| 13 | Correct | 6 ms | 600 KB | Output is correct |
| 14 | Correct | 5 ms | 600 KB | Output is correct |
| 15 | Correct | 6 ms | 600 KB | Output is correct |
| 16 | Correct | 5 ms | 344 KB | Output is correct |
| 17 | Correct | 5 ms | 344 KB | Output is correct |
| 18 | Correct | 7 ms | 600 KB | Output is correct |
| 19 | Correct | 6 ms | 344 KB | Output is correct |
| 20 | Correct | 5 ms | 600 KB | Output is correct |
| 21 | Correct | 4 ms | 600 KB | Output is correct |
| 22 | Correct | 3 ms | 344 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 344 KB | Output is correct |
| 2 | Correct | 0 ms | 344 KB | Output is correct |
| 3 | Correct | 0 ms | 344 KB | Output is correct |
| 4 | Correct | 0 ms | 344 KB | Output is correct |
| 5 | Correct | 0 ms | 344 KB | Output is correct |
| 6 | Correct | 2 ms | 596 KB | Output is correct |
| 7 | Correct | 1 ms | 344 KB | Output is correct |
| 8 | Correct | 4 ms | 344 KB | Output is correct |
| 9 | Correct | 6 ms | 600 KB | Output is correct |
| 10 | Correct | 6 ms | 344 KB | Output is correct |
| 11 | Correct | 4 ms | 600 KB | Output is correct |
| 12 | Correct | 7 ms | 600 KB | Output is correct |
| 13 | Correct | 6 ms | 600 KB | Output is correct |
| 14 | Correct | 5 ms | 600 KB | Output is correct |
| 15 | Correct | 6 ms | 600 KB | Output is correct |
| 16 | Correct | 5 ms | 344 KB | Output is correct |
| 17 | Correct | 5 ms | 344 KB | Output is correct |
| 18 | Correct | 7 ms | 600 KB | Output is correct |
| 19 | Correct | 6 ms | 344 KB | Output is correct |
| 20 | Correct | 5 ms | 600 KB | Output is correct |
| 21 | Correct | 4 ms | 600 KB | Output is correct |
| 22 | Correct | 3 ms | 344 KB | Output is correct |
| 23 | Correct | 11 ms | 600 KB | Output is correct |
| 24 | Correct | 4 ms | 344 KB | Output is correct |
| 25 | Correct | 27 ms | 856 KB | Output is correct |
| 26 | Correct | 40 ms | 1092 KB | Output is correct |
| 27 | Correct | 41 ms | 696 KB | Output is correct |
| 28 | Correct | 23 ms | 856 KB | Output is correct |
| 29 | Correct | 51 ms | 948 KB | Output is correct |
| 30 | Correct | 40 ms | 856 KB | Output is correct |
| 31 | Correct | 24 ms | 936 KB | Output is correct |
| 32 | Correct | 27 ms | 436 KB | Output is correct |
| 33 | Correct | 28 ms | 692 KB | Output is correct |
| 34 | Correct | 27 ms | 1196 KB | Output is correct |
| 35 | Correct | 33 ms | 600 KB | Output is correct |
| 36 | Correct | 31 ms | 948 KB | Output is correct |
| 37 | Correct | 38 ms | 1096 KB | Output is correct |
| 38 | Correct | 46 ms | 856 KB | Output is correct |
| 39 | Correct | 33 ms | 1364 KB | Output is correct |
| 40 | Correct | 27 ms | 1100 KB | Output is correct |
| 41 | Correct | 21 ms | 444 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 344 KB | Output is correct |
| 2 | Correct | 0 ms | 344 KB | Output is correct |
| 3 | Correct | 0 ms | 344 KB | Output is correct |
| 4 | Correct | 0 ms | 344 KB | Output is correct |
| 5 | Correct | 0 ms | 344 KB | Output is correct |
| 6 | Partially correct | 0 ms | 344 KB | Output is partially correct |
| 7 | Correct | 25 ms | 440 KB | Output is correct |
| 8 | Correct | 8 ms | 344 KB | Output is correct |
| 9 | Partially correct | 76 ms | 912 KB | Output is partially correct |
| 10 | Partially correct | 90 ms | 848 KB | Output is partially correct |
| 11 | Partially correct | 98 ms | 620 KB | Output is partially correct |
| 12 | Partially correct | 52 ms | 688 KB | Output is partially correct |
| 13 | Partially correct | 113 ms | 684 KB | Output is partially correct |
| 14 | Partially correct | 104 ms | 688 KB | Output is partially correct |
| 15 | Partially correct | 48 ms | 1188 KB | Output is partially correct |
| 16 | Partially correct | 63 ms | 848 KB | Output is partially correct |
| 17 | Partially correct | 65 ms | 848 KB | Output is partially correct |
| 18 | Partially correct | 56 ms | 1104 KB | Output is partially correct |
| 19 | Partially correct | 65 ms | 680 KB | Output is partially correct |
| 20 | Partially correct | 77 ms | 1164 KB | Output is partially correct |
| 21 | Partially correct | 95 ms | 920 KB | Output is partially correct |
| 22 | Partially correct | 99 ms | 848 KB | Output is partially correct |
| 23 | Partially correct | 94 ms | 940 KB | Output is partially correct |
| 24 | Partially correct | 77 ms | 712 KB | Output is partially correct |
| 25 | Partially correct | 59 ms | 1208 KB | Output is partially correct |
| 26 | Partially correct | 42 ms | 1172 KB | Output is partially correct |
| 27 | Partially correct | 64 ms | 936 KB | Output is partially correct |
| 28 | Partially correct | 62 ms | 936 KB | Output is partially correct |
| 29 | Partially correct | 55 ms | 936 KB | Output is partially correct |
| 30 | Partially correct | 56 ms | 692 KB | Output is partially correct |
| 31 | Partially correct | 85 ms | 908 KB | Output is partially correct |
| 32 | Partially correct | 90 ms | 1112 KB | Output is partially correct |
| 33 | Partially correct | 106 ms | 1192 KB | Output is partially correct |
| 34 | Partially correct | 109 ms | 944 KB | Output is partially correct |
| 35 | Partially correct | 69 ms | 860 KB | Output is partially correct |
| 36 | Partially correct | 70 ms | 1104 KB | Output is partially correct |
| 37 | Partially correct | 90 ms | 596 KB | Output is partially correct |
| 38 | Partially correct | 86 ms | 852 KB | Output is partially correct |
| 39 | Partially correct | 75 ms | 1116 KB | Output is partially correct |
| 40 | Partially correct | 68 ms | 936 KB | Output is partially correct |
| 41 | Partially correct | 73 ms | 916 KB | Output is partially correct |
| 42 | Partially correct | 68 ms | 928 KB | Output is partially correct |
| 43 | Partially correct | 21 ms | 600 KB | Output is partially correct |
| 44 | Partially correct | 92 ms | 936 KB | Output is partially correct |
| 45 | Partially correct | 36 ms | 592 KB | Output is partially correct |
| 46 | Partially correct | 59 ms | 848 KB | Output is partially correct |
| 47 | Partially correct | 50 ms | 696 KB | Output is partially correct |
| 48 | Partially correct | 51 ms | 848 KB | Output is partially correct |