iepuras1.cpp: In function 'int prim(int)': iepuras1.cpp:10: warning: suggest explicit braces to avoid ambiguous 'else' iepuras1.cpp: In function 'int main()': iepuras1.cpp:21: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result iepuras1.cpp:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result iepuras1.cpp:20: warning: 'poz' may be used uninitialized in this function