Compilare: user.cpp: In function ‘int main()’: user.cpp:21:77: warning: format ‘%c’ expects argument of type ‘char*’, but argument 7 has type ‘int*’ [-Wformat=] fscanf(fin,"%d%d%d%d %c",&x[i].l1,&x[i].c1,&x[i].l2,&x[i].c2,&x[i].t); ^ user.cpp:18:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d",&n,&m,&u); ^ user.cpp:21:78: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d%d%d %c",&x[i].l1,&x[i].c1,&x[i].l2,&x[i].c2,&x[i].t); ^ user.cpp:44:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&q); ^ user.cpp:47:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&x,&y); ^