Linkedin (or other social networks, such as Facebook and G+) use the “social graph information” to show the social relationship between you and other members.
Such as, “You and Mr.Obama share 10 mutual friends” or “You have 1,000 second-degree connections”.
This feature is very common for a …
more ...用C++实现一个尽可能通用的sort函数
一个通用的sort函数应该包含以下要点：
Implementation
(n, m) = map(int, raw_input().split())
res = []
for i in xrange(n):
if i % 2 == 0:
res.append('#' * m)
elif (i / 2) % 2 == 0:
res.append('.' * (m - 1) + '#')
else:
res.append('#' + '.' * (m - 1))
for line in res:
print line
DFS …
more ...Simulation.
n = int(raw_input())
g = [[1 for i in xrange(n)] for j in xrange(n)]
for i in xrange(1, n):
for j in xrange(1, n):
g[i][j] = g[i - 1][j] + g[i][j - 1]
print g[n - 1][n - 1]
Brute force.
There are multiple ways to form a 2*2 square at one single step.
So at every step, we have to check the neighbours of pixel that is colored black.
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <iostream>
#include <vector>
using namespace std;
#define …Given a sequence of integer numbers, try to find the median of the sequence.
From Ace of Programming Interview, Cpt1 - Hiring Programmers: The Inside Story
For an interviewee, one the the most efficient way to build a rapport is to try to see things in from the interviewer’s perspective.