hehainan_86的专栏

Problem Description Password security is a tricky thing. Users prefer simple passwords that are easy to remember (like buddy), but such passwords are often insecure. Some sites use random computer-ge

Problem Description Most bicycle speedometers work by using a Hall Effect sensor fastened to the front fork of the bicycle. A magnet is attached to one of the spokes on the front wheel so that it wil

Problem Description A robot has been programmed to follow the instructions in its path. Instructions for the next direction the robot is to move are laid down in a grid. The possible instructions

Problem Description Ignatius is poor at math,he falls across a puzzle problem,so he has no choice but to appeal to Eddy. this problem describes that:f(x)=5*x^13+13*x^5+k*a*x,input a nonegative intege

 #include #include#define M 100;int main(){ int arr[100][4] = { {0}}; int a[100] ={ 0 }; int b[100] ={ 0 } ; int N; int result = 0; int t; int t1 = 0, t2 = 0; int k; int i,j,p; int fl