Compilare: user.c:3:1: warning: data definition has no type or storage class [enabled by default] m[2][100000]; ^ user.c:3:1: warning: type defaults to ‘int’ in declaration of ‘m’ [enabled by default] user.c: In function ‘aprox’: user.c:5:9: warning: unused variable ‘t’ [-Wunused-variable] int t,r,c; ^ user.c: In function ‘main’: user.c:16:21: warning: unused variable ‘b’ [-Wunused-variable] int i ,n ,aux,a,b,j,t=0,k; ^ user.c:16:19: warning: unused variable ‘a’ [-Wunused-variable] int i ,n ,aux,a,b,j,t=0,k; ^ user.c:17:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d",&n); ^ user.c:19:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f1,"%d%d",&m[0][i],&m[1][i]); ^