Compilare: main.cpp: In function 'int main()': main.cpp:58:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%s %s",s1+1,s2+1); ^ main.cpp: In function 'void afisare(int, int, int)': main.cpp:43:36: warning: 'col' may be used uninitialized in this function [-Wmaybe-uninitialized] afisare(lin,col,op); ^ main.cpp:43:36: warning: 'lin' may be used uninitialized in this function [-Wmaybe-uninitialized]