Compilare: user.c: In function ‘main’: user.c:18:13: warning: format ‘%c’ expects argument of type ‘char *’, but argument 3 has type ‘int *’ [-Wformat=] fscanf(fin," %c",&v[i][j]); ^ user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d ",&n,&m); ^ user.c:18:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin," %c",&v[i][j]); ^