Compilare: user.cpp: In function ‘void main2()’: user.cpp:78:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d",&n,&m,&k); ^ user.cpp:80:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&p); ^ user.cpp:84:58: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d %d %d", &c[i].an, &c[i].x, &c[i].y); ^ user.cpp:87:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&q); ^ user.cpp:91:66: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d%d",&r[i].x1,&r[i].y1,&r[i].x2,&r[i].y2); ^ user.cpp: In function ‘int main()’: user.cpp:140:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&t); ^ user.cpp: In function ‘void main3()’: user.cpp:65:25: warning: array subscript is above array bounds [-Warray-bounds] if(rez[i][an]==1) ^