ferma1.cpp: In function 'int main()': ferma1.cpp:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result ferma1.cpp:47: warning: 'lmax' may be used uninitialized in this function ferma1.cpp:47: warning: 'cmax' may be used uninitialized in this function ferma1.cpp:48: warning: 'culmax' may be used uninitialized in this function