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What will be the output of the following C++ code? #include <stdio.h> #include <ctype.h> int main () { int i = 0; int cx = 0; char str[] = "Hello, welcome!"; while (str[i]) { if (ispunct(str[i])) cx++; i++; } printf ("%d\n", cx); return 0; }
What is the time complexity of performing a depth-first search (DFS) on a graph using an adjacency matrix?
Which access specifier allows members of a class to be accessed from anywhere in the program in C++?
What will be the output of the following Python code snippet? numbers = {} letters = {} comb = {} numbers[1] = 56 numbers[3] = 7 letters[4] = 'B' comb['Numbers'] = numbers comb['Letters'] = letters print(comb)
The first mechanical calculator was invented in