Compilare: main.cpp: In function 'int main()': main.cpp:22:67: warning: variable 'ok' set but not used [-Wunused-but-set-variable] int i,p,n,m,xc,yc,k,x,y,act,j,j2,x2,y2,g,d,xv,yv,dist,xd,yd,c,ok,elem,nod,vecin; ^~ main.cpp:23:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&p); ^ main.cpp:24:47: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d%d%d",&n,&m,&xc,&yc,&k); ^ main.cpp:33:41: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d",&x,&y,&act); ^ main.cpp:41:25: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&g); ^ main.cpp:43:46: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d%d%d",&x,&y,&x2,&y2); ^ main.cpp:86:20: warning: 'yd' may be used uninitialized in this function [-Wmaybe-uninitialized] q[1]=cod[xd][yd]; ~~~~~~~~~~^ main.cpp:86:20: warning: 'xd' may be used uninitialized in this function [-Wmaybe-uninitialized]