Compilare: user.cpp: In function ‘int main()’: user.cpp:18:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < strlen(originalString); i++) { ^ user.cpp:24:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] (i == strlen(originalString) - 1)) { ^ user.cpp:15:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%s", originalString); ^