AC Small Notes

1: Use of basic library functions

The Rand () function can produce a random number between 0~32767.

A+rand ()% (b-a) can get a random number between [A, b].

2: Use of basic data types

You can use forced type conversions

Example: String str;

cin>>str;

int j=0;

while (Str[j]) {

Char c=str[j]+4; Here char uses the coercion type conversion.

cout<<c;

++j;

}

3: Simple use of the loop body

int change (int n) {

int m=0;

do{

m=m*10+n%10;

n/=10;

}while (n!=0); Here is the implementation of the N reverse.

return m;

}

Num=floor (num* 10.0 + 0.5)/10.0; Rounding is achieved.

AC Small Notes