Compilare: main.cpp: In function 'int main()': main.cpp:12:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d\n", &n) ; ^ main.cpp:24:26: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d\n", &n) ; ^ main.cpp:34:13: warning: 'second' may be used uninitialized in this function [-Wmaybe-uninitialized] second ++ ; ^ main.cpp:31:5: warning: 'poz' may be used uninitialized in this function [-Wmaybe-uninitialized] if (i >= poz) ^~