Compilare: user.cpp: In function ‘void completare(int)’: user.cpp:80:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, crt=0, prec=1, ant, lin, col=0; ^ user.cpp: In function ‘void citire()’: user.cpp:36:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &n, &m); ^ user.cpp:39:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d %d", &a, &b); ^ user.cpp: In function ‘int colt()’: user.cpp:76:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int vecin_comun(int, int)’: user.cpp:145:1: warning: control reaches end of non-void function [-Wreturn-type] } ^