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main() {int a=0,i; for(i=1;i<5;i++) { switch(i) { case0: case3:a...
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switch case语句，你必须知道，如果case后面没有break，那么，就从符合条件的那个case一直走到最后 当i=1时，从case 1:开始走到最后，即：执行a+=3;和a+=5;两条语句，结果为a为8。
3 Forget about the ++ for the moment, they're just a distraction. int a = 5; int i = 0; int x = (i, a); Sets the value of x to 5. The i is evaluated and discarded, then the a is evaluated and assigned to x. In your loop, the post-increment a++ does what it always does; returns the current value and then increments the variable.
for (int i = 0 ; i < 5 ; i++) { // do something } // i is now out of scope under /Za or /Zc:forScope By default, under /Ze, a variable declared in a for loop remains in scope until the for loop's enclosing scope ends. /Zc:forScope enables standard behavior of variables declared in for loops without needing to specify /Za.
Since case 0 is true i becomes 5, and since there is no break statement till last statement of switch block, i becomes 16. Before starting the next iteration, i becomes 17 due to i++.
C Programming questions and answers section on "Control Instructions Find Output of Program" for placement interviews and competitive exams: Fully solved C Programming problems with detailed answer descriptions and explanations are given for the "Control Instructions Find Output of Program" section.
Explanation: This will not print anything because it will not enter the for loop. What is written between ; and ; is called the condition. When you write a condition there, like in or i==n, etc., it is either false or true. So, the loop runs as long as the statement is true. When the condition becomes false, the loop exits, meaning the program counter will not go into the loop's ...
Why most of the people (at least by looking into codes) in for loops are using i++ instead of ++i? afaik ++i is faster because it uses less operations.. and aside of loops what's the point in using i++; in single line?
1 5 9 19 Prefix executed before anything else in the statement 1 - 1 = 0 if the loop condition is 0 (false) the loop does not execute 20 int main ()
C++ Java Python C# JavaScript #include using namespace std; int main() { for (int i = 0; i < 5; i++) { cout << i << " "; } cout << endl; return 0; } Output 0 1 2 3 4 While Loop: A while loop in programming is an entry-controlled control flow structure that repeatedly executes a block of code as long as a specified condition is true ...
C Programming questions and answers section on "Declarations and Initializations Find Output of Program" for placement interviews and competitive exams: Fully solved C Programming problems with detailed answer descriptions and explanations are given for the "Declarations and Initializations Find Output of Program" section - Page 2.