Submission #438974

#	Time	Username	Problem	Language	Result	Execution time	Memory
438974		adamjinwei	The Big Prize (IOI17_prize)	C++14	20 / 100	1 ms	284 KiB

prize

#include <bits/stdc++.h>
#include "prize.h"
#define inf 1000000007
#define mod 1000000007
#define rnd() rand_num()
#define bigrnd() dis(rand_num)
//#pragma GCC optimize("Ofast","inline","-ffast-math")
//#pragma GCC target("avx,sse2,sse3,sse4,mmx")
//#define int long long
using namespace std;
unsigned sed=std::chrono::system_clock::now().time_since_epoch().count();
mt19937 rand_num(sed);
uniform_int_distribution<long long> dis(0,inf);
template <typename T> void read(T &x){
	x=0;char ch=getchar();int fh=1;
	while (ch<'0'||ch>'9'){if (ch=='-')fh=-1;ch=getchar();}
	while (ch>='0'&&ch<='9')x=x*10+ch-'0',ch=getchar();
	x*=fh;
}
template <typename T> void write(T x) {
	if (x<0) x=-x,putchar('-');
	if (x>9) write(x/10);
	putchar(x%10+'0');
}
template <typename T> void writeln(T x) {
	write(x);
	puts("");
}
int find_best(int n)
{
	int l=0,r=n-1;
	while(l<r)
	{
		int mid=l+r>>1;
		vector<int> rpl=ask(mid);
		if(rpl[0]==0&&rpl[1]==0) return mid;
		if(rpl[0]==1) r=mid-1;
		else l=mid+1;
	}
	return l;
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:34:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   34 |   int mid=l+r>>1;
      |           ~^~

• Subtask 1: 20 / 20
• Subtask 2: 0 / 80