Submission #71847

#	Time	Username	Problem	Language	Result	Execution time	Memory
71847		yusufake	Cave (IOI13_cave)	C++98	13 / 100	819 ms	640 KiB

cave

#include<bits/stdc++.h>
using namespace std;
#include "cave.h"

int A[5003],T[5003];
vector < int > v;
void exploreCave(int n) {
    /* ... */
    int i,j,l,m,r;
    v.clear();
    for(i=0;i<n;i++) v.push_back(i);
    for(i=0;i<n;i++){
        l = 0;
        r = v.size()-1;
        if(tryCombination(T) == i){
            for(; l<r ;){
                m = l+r >> 1;
                for(j=0;j<=m;j++) T[ v[j] ] = 1;
                if(tryCombination(T) > i) r = m;
                else l = m+1;
                for(j=0;j<=m;j++) T[ v[j] ] = 0;
            }
            j = v[l];
            A[j] = i;
            T[j] = 1;
        }
        else{
            for(; l<r ;){
                m = l+r >> 1;
                for(j=0;j<=m;j++) T[ v[j] ] = 1;
                if(tryCombination(T) == i) r = m;
                else l = m+1;
                for(j=0;j<=m;j++) T[ v[j] ] = 0;
            }
            j = v[l];
            A[j] = i;
            T[j] = 0;
        }
        v.erase(v.begin() + l);
    }
    answer(T,A);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:17:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                 m = l+r >> 1;
                     ~^~
cave.cpp:29:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
                 m = l+r >> 1;
                     ~^~

• Subtask 1: 0 / 12
• Subtask 2: 13 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 30
• Subtask 5: 0 / 24