while-loop

问题 I write down a code which find out quotient after dividing two number but without using multiplication,division or mod operator. My code public int divide(int dividend, int divisor) { int diff=0,count=0; int fun_dividend=dividend; int fun_divisor=divisor; int abs_dividend=abs(dividend); int abs_divisor=abs(divisor); while(abs_dividend>=abs_divisor){ diff=abs_dividend-abs_divisor; abs_dividend=diff; count++; } if(fun_dividend<0 && fun_divisor<0){ return count; } else if(fun_divisor<0||fun

问题 I write down a code which find out quotient after dividing two number but without using multiplication,division or mod operator. My code public int divide(int dividend, int divisor) { int diff=0,count=0; int fun_dividend=dividend; int fun_divisor=divisor; int abs_dividend=abs(dividend); int abs_divisor=abs(divisor); while(abs_dividend>=abs_divisor){ diff=abs_dividend-abs_divisor; abs_dividend=diff; count++; } if(fun_dividend<0 && fun_divisor<0){ return count; } else if(fun_divisor<0||fun

问题 Problem: I have a CSV dump file - with excess of 250,000 lines. When I use while read - it takes a while (no pun intended). I would like to go back to the last 10,000 lines to do what I need to do instead of the 250,000 lines. Code Snippet: My current code is this: IFS="," while read line do awk_var=`echo "$line" | awk -F" " '{print $0}'` var_array=($awk_var) read -a var_array <<< "${awk_var}" echo "${var_array[1]}" done </some_directory/directory/file_in_question.csv Question: How can I use

问题 Problem: I have a CSV dump file - with excess of 250,000 lines. When I use while read - it takes a while (no pun intended). I would like to go back to the last 10,000 lines to do what I need to do instead of the 250,000 lines. Code Snippet: My current code is this: IFS="," while read line do awk_var=`echo "$line" | awk -F" " '{print $0}'` var_array=($awk_var) read -a var_array <<< "${awk_var}" echo "${var_array[1]}" done </some_directory/directory/file_in_question.csv Question: How can I use

问题 I have written a simple code: #include <iostream> using namespace std; int main() { int a, b; while (cin >> a >> b) //Note the cin inside while loop { cout << a << b << "\n"; } } We know that while loop functions only when the expression evaluates true ( 1 ) or false ( 0 ). How come cin is evaluating true and false . Also how is while loop running when I am entering a number and stops when I enter something non-digit ? How is it evaluating true and false? 回答1: When you writes cin >> a , you

问题 I have written a simple code: #include <iostream> using namespace std; int main() { int a, b; while (cin >> a >> b) //Note the cin inside while loop { cout << a << b << "\n"; } } We know that while loop functions only when the expression evaluates true ( 1 ) or false ( 0 ). How come cin is evaluating true and false . Also how is while loop running when I am entering a number and stops when I enter something non-digit ? How is it evaluating true and false? 回答1: When you writes cin >> a , you

问题 as a follow up on my question original question posted here UPDATE in Batches Does Not End and Remaining Data Does Not Get Updated If you use the logic below you'll see that update never finishes. Let me know if you have any ideas why... Table 1 IF OBJECT_ID('tempdb..#Table2') IS NOT NULL BEGIN DROP TABLE #Table2; END CREATE TABLE #Table2 (ID INT); DECLARE @Count int = 0; WHILE (select count(*) from #Table2) < 10000 BEGIN INSERT INTO #Table2 (ID) VALUES (@Count) -- Make sure we have a unique

问题 I’m trying to get the response of an api request made with ajax.ajax() and the response is stored into ['apiResponse'] in the HTML5 Local Storage (but the rest of the python function processes without waiting for it be put into localStorage). Because of this I need to wait for it before getting the response and I thought I could do what I did below for the program to wait before it proceed. Unfortunately the browser seems to freeze every time I put a while loop... If someone know how to make

问题 I’m trying to get the response of an api request made with ajax.ajax() and the response is stored into ['apiResponse'] in the HTML5 Local Storage (but the rest of the python function processes without waiting for it be put into localStorage). Because of this I need to wait for it before getting the response and I thought I could do what I did below for the program to wait before it proceed. Unfortunately the browser seems to freeze every time I put a while loop... If someone know how to make

问题 I am trying to ask scanner input until I get a valid answer but my while loop is not ending. First I am asking for user input, and then if the input is valid I am printing out the coordinates and if it is not valid I am throwing an error and asking for input again. This is my code: public static String[] positionQuery(int dim, Scanner test_in) { String[] coordinates; Scanner stdin = new Scanner(System.in); System.out.println("Provide origin and destination coordinates."); System.out.println(