roata.cpp: In function 'int main()': roata.cpp:28: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result roata.cpp:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result roata.cpp:37: warning: 'minPos' may be used uninitialized in this function roata.cpp:48: warning: 'minPos' may be used uninitialized in this function