Submission #73541

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
73541	2018-08-28 12:02:17	top34051	Hotter Colder (IOI10_hottercolder)	C++17	75 / 100	780 ms	8312 KiB

hottercolder

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#include "grader.h"
#include<bits/stdc++.h>
using namespace std;
 
int n,rev;
 
int kuy(int x) {
    if(!rev) return x;
    return n-x+1;
}
 
int small(int l, int r, int a) {
    Guess(kuy(l));
    int res=Guess(kuy(r));
//    printf("res = %d\n",res);
    if (res==0) return (l+r)/2;
    if (res==1)  return r;
    return l;
}
 
int solve(int l, int r, int a) {
//    printf("solve [%d, %d] : %d [%d, %d]\n",kuy(l),kuy(r),a,l,r);
    if(l==r) return l;
    if(r-l+1<=3) return small(l,r,a);
    if(a==l) {
        int b = (l*2+r)/3;
        int c = (l+2*r)/3;
        int tmp1 = Guess(kuy(b)), tmp2 = Guess(kuy(c));
//        printf("b = %d c = %d tmp = %d and %d (%d, %d)\n",kuy(b),kuy(c),tmp1,tmp2,b,c);
        if(a!=b && tmp1==0) return (a+b)/2;
 
 
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• Subtask 1: 25 / 25
• Subtask 2: 25 / 25
• Subtask 3: 25 / 25
• Subtask 4: 0 / 25