![]() ![]() Correct! Why? Because %d automatically eats whitespaces and special characters. However, many would think now that, “Wait a minute… I do this while reading numbers, with %d for example and I had no problem”. If we had a fourth scanf, then it would read the enter. a is been assigned to variable c and enter remains in the stdin buffer, ready to be read by the next scanf. Then the third scanf waits for a key press. Second scanf will read the enter! That’s why, the second printf of the value of c leaves just a newline after “c=”. First prompt message arrives, you type s and then what? You hit enter! Enter is a character!Īs a result, first scanf will read the s. But the intention of the programmer is usually to get three characters from the user, which is what is happening, isn’t? Let me explain. Usually, this happens inside a loop, but let’s see a sample code without a loop that exposes the problem.Īs you see, the input No.2 was skipped. ![]() Quite often I see the following problem in people’s code ( as a matter of fact, aliens don’t do that mistake :p ), when trying to input a character again and again with scanf. Tic Tac Toe Object Oriented Programming C++.Crosssection with traffic lights Object Oriented Programming.Create Pointset on a Sphere or a Klein bottle.Spark – Container exited with a non-zero exit code 143.Proper position in front of the computer.2-node Hadoop Cluster with pc and virtualbox.Find k max elements in array of N size (C/C++).Read_file, update only a part of a file (C++).Determine where two circles intersect ( C++).Returning local variable and accessing uninitialized variable.2D dynamic array in continuous memory locations (C).Difference between two doubles is wrong (C++). ![]()
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