Submission #58068

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
58068	2018-07-16 17:25:02	naderjemel	Cave (IOI13_cave)	C++14	100 / 100	467 ms	640 KiB

cave

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#include "cave.h"
#include <bits/stdc++.h>
using namespace std;
int s[5000],ss[5000],d[5000];
void exploreCave(int N) {
    for(int i=0;i<N;i++){
      s[i]=0;
      d[i]=-1;
    }
    bool done[5005];
    memset(done,false,sizeof(done));
    for(int i=0;i<N;i++){
      int lo=0,hi=N-1;
      int rs;
      int r=tryCombination(s);
      if(r==i){ // it opens with 1
        while(lo<=hi){
          int mid=(lo+hi)>>1;
          for(int j=mid;j<N;j++) ss[j]=s[j];
          for(int j=lo;j<=mid;j++){
            if(done[j]) ss[j]=s[j];
            else ss[j]=1;
          }
          int rr=tryCombination(ss);
          if(rr==i){
            lo=mid+1;
          }
          else{
 
 
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Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:35:12: warning: 'rs' may be used uninitialized in this function [-Wmaybe-uninitialized]
       d[rs]=i;
       ~~~~~^~

• Subtask 1: 12 / 12
• Subtask 2: 13 / 13
• Subtask 3: 21 / 21
• Subtask 4: 30 / 30
• Subtask 5: 24 / 24