Compilare: main.cpp: In function 'int main()': main.cpp:24:19: warning: unused variable 'j' [-Wunused-variable] int n,x,y,l,i,j,st,dr,p; ^ main.cpp:24:27: warning: variable 'p' set but not used [-Wunused-but-set-variable] int n,x,y,l,i,j,st,dr,p; ^ main.cpp:25:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d%d%d",&x,&y,&n,&l); ^ main.cpp:29:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&d[i]); ^