Eroare de compilare: user.c: In function ‘main’: user.c:7:26: error: ‘m’ undeclared (first use in this function) ret=fscanf(in,"%d %d", &m,&n); ^ user.c:7:26: note: each undeclared identifier is reported only once for each function it appears in user.c:7:29: error: ‘n’ undeclared (first use in this function) ret=fscanf(in,"%d %d", &m,&n); ^ user.c:8:2: warning: implicit declaration of function ‘malloc’ [-Wimplicit-function-declaration] char *buf=malloc(m*n*sizeof(int)); ^ user.c:8:12: warning: incompatible implicit declaration of built-in function ‘malloc’ [enabled by default] char *buf=malloc(m*n*sizeof(int)); ^ user.c:9:8: error: ‘buffer’ undeclared (first use in this function) fread(buffer,m*n*sizeof(int),1,in); ^ user.c:8:8: warning: unused variable ‘buf’ [-Wunused-variable] char *buf=malloc(m*n*sizeof(int)); ^ user.c:5:20: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] int a[17][17],i,j,ret,aux,row,col=0,sum_poz,sum_neg; ^