Submission #17650

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
17650	2016-01-06 23:12:40	Namnamseo	Cave (IOI13_cave)	C++14	100 / 100	493 ms	644 KiB

cave

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#include "cave.h"
#include <cstdio>
int  trial_array   [5010];
bool fixed_point   [5010];
int switch_forward [5010]; // index is for switch
int switch_reverse [5010]; // index is for door
int switch_parity  [5010]; // index is for switch; value makes it open.
int n;
// zero is for open, one means closed.
int try_wrapper(){
    int tmp = tryCombination(trial_array);
    if(tmp<0) tmp=2*n;
    return tmp;
}
void find_switch(int l,int r,int target,int zero_result){
    if(l==r){
        //printf("Found door %d : switch %d\n",target,l);
        switch_reverse[target]=l;
        switch_forward[l]=target;
        switch_parity [l]=1-zero_result;
        fixed_point   [l]=1;
    } else {
        int m=(l+r)/2;
 
 
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• Subtask 2: 13 / 13
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• Subtask 5: 24 / 24