Compilare: user.cpp: In function ‘int main()’: user.cpp:50:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(a[i][j]==0) ^ user.cpp:35:16: warning: unused variable ‘ic’ [-Wunused-variable] int e,V,i,j,ic=1,sf=1,c,l,t,mini=-1,pp=1,x,y; ^ user.cpp:35:21: warning: unused variable ‘sf’ [-Wunused-variable] int e,V,i,j,ic=1,sf=1,c,l,t,mini=-1,pp=1,x,y; ^ user.cpp:35:26: warning: unused variable ‘c’ [-Wunused-variable] int e,V,i,j,ic=1,sf=1,c,l,t,mini=-1,pp=1,x,y; ^ user.cpp:35:28: warning: unused variable ‘l’ [-Wunused-variable] int e,V,i,j,ic=1,sf=1,c,l,t,mini=-1,pp=1,x,y; ^ user.cpp:35:32: warning: unused variable ‘mini’ [-Wunused-variable] int e,V,i,j,ic=1,sf=1,c,l,t,mini=-1,pp=1,x,y; ^ user.cpp:35:40: warning: unused variable ‘pp’ [-Wunused-variable] int e,V,i,j,ic=1,sf=1,c,l,t,mini=-1,pp=1,x,y; ^ user.cpp:36:8: warning: unused variable ‘lin’ [-Wunused-variable] int lin[4]={-1,0,1,0}; ^ user.cpp:37:8: warning: unused variable ‘col’ [-Wunused-variable] int col[4]={0,1,0,-1}; ^ user.cpp:33:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gheizere.in","r",stdin); ^ user.cpp:34:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("gheizere.out","w",stdout); ^ user.cpp:38:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d",&n,&m,&p,&e,&V); ^ user.cpp:40:68: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d",&v[i].x,&v[i].y,&v[i].r,&v[i].t,&v[i].d); ^