unupatru.cpp: In function 'int main()': unupatru.cpp:21: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result unupatru.cpp:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result unupatru.cpp:18: warning: 'x' may be used uninitialized in this function unupatru.cpp:18: warning: 'p' may be used uninitialized in this function