Compilare: user.cpp: In function ‘int main()’: user.cpp:2:542: warning: unused variable ‘xi’ [-Wunused-variable] using namespace std;ifstream fin("zona.in");ofstream fout("zona.out");int dx[]={-1,0,1,0};int dy[]={0,1,0,-1};int nrceva,ok,x,y,n,l,x1,y1,i,j,a[110][110],z,cx[50000],cy[50000];int verif(int x,int y){int x1=x,x2=x,y1=y,y2=y;while(a[x][y1]==0)y1--;if(!y1)return 0;while(a[x][y2]==0)y2++;if(!y2)return 0;while(a[x1][y]==0)x1--;if(!x1)return 0;while(a[x2][y]==0)x2--;if(!x2)return 0;return 1;}void filll(int x,int y){a[x][y]=1;nrceva++;for(int k=0;k<4;k++)if(a[x+dx[k]][y+dy[k]]==0)filll(x+dx[k],y+dy[k]);}int main(){fin>>x>>y>>n>>l;x++;y++;int xi=x;int yi=y;int is;for (i=0;i<=n+1;i++) a[0][i]=a[n+2][i]=a[i][0]=a[i][n+2]=2;a[x][y]=1;cx[0]=x;cy[0]=y;int imj;for(i=1;i<=l;i++){fin>>z;x+=dx[z-1];y+=dy[z-1];a[x][y]=1;cx[i]=x;cy[i]=y;if(!ok)for(j=0;j<i;j++)if(cx[i]==cx[j]&&cy[i]==cy[j]){ok=1;for(int k=0;k<j;k++)a[cx[k]][cy[k]]=0;fout<<i-j<<'\n';imj=i-j;}}for (i=1;i<=n+1&&ok;i++)for(j=1;j<=n+1&&ok;j++){if(a[i][j]==0)if(verif(i,j)){ok=0;filll(i,j);}}fout<<nrceva+imj/2-1<<'\n';} ^ user.cpp:2:551: warning: unused variable ‘yi’ [-Wunused-variable] using namespace std;ifstream fin("zona.in");ofstream fout("zona.out");int dx[]={-1,0,1,0};int dy[]={0,1,0,-1};int nrceva,ok,x,y,n,l,x1,y1,i,j,a[110][110],z,cx[50000],cy[50000];int verif(int x,int y){int x1=x,x2=x,y1=y,y2=y;while(a[x][y1]==0)y1--;if(!y1)return 0;while(a[x][y2]==0)y2++;if(!y2)return 0;while(a[x1][y]==0)x1--;if(!x1)return 0;while(a[x2][y]==0)x2--;if(!x2)return 0;return 1;}void filll(int x,int y){a[x][y]=1;nrceva++;for(int k=0;k<4;k++)if(a[x+dx[k]][y+dy[k]]==0)filll(x+dx[k],y+dy[k]);}int main(){fin>>x>>y>>n>>l;x++;y++;int xi=x;int yi=y;int is;for (i=0;i<=n+1;i++) a[0][i]=a[n+2][i]=a[i][0]=a[i][n+2]=2;a[x][y]=1;cx[0]=x;cy[0]=y;int imj;for(i=1;i<=l;i++){fin>>z;x+=dx[z-1];y+=dy[z-1];a[x][y]=1;cx[i]=x;cy[i]=y;if(!ok)for(j=0;j<i;j++)if(cx[i]==cx[j]&&cy[i]==cy[j]){ok=1;for(int k=0;k<j;k++)a[cx[k]][cy[k]]=0;fout<<i-j<<'\n';imj=i-j;}}for (i=1;i<=n+1&&ok;i++)for(j=1;j<=n+1&&ok;j++){if(a[i][j]==0)if(verif(i,j)){ok=0;filll(i,j);}}fout<<nrceva+imj/2-1<<'\n';} ^ user.cpp:2:560: warning: unused variable ‘is’ [-Wunused-variable] using namespace std;ifstream fin("zona.in");ofstream fout("zona.out");int dx[]={-1,0,1,0};int dy[]={0,1,0,-1};int nrceva,ok,x,y,n,l,x1,y1,i,j,a[110][110],z,cx[50000],cy[50000];int verif(int x,int y){int x1=x,x2=x,y1=y,y2=y;while(a[x][y1]==0)y1--;if(!y1)return 0;while(a[x][y2]==0)y2++;if(!y2)return 0;while(a[x1][y]==0)x1--;if(!x1)return 0;while(a[x2][y]==0)x2--;if(!x2)return 0;return 1;}void filll(int x,int y){a[x][y]=1;nrceva++;for(int k=0;k<4;k++)if(a[x+dx[k]][y+dy[k]]==0)filll(x+dx[k],y+dy[k]);}int main(){fin>>x>>y>>n>>l;x++;y++;int xi=x;int yi=y;int is;for (i=0;i<=n+1;i++) a[0][i]=a[n+2][i]=a[i][0]=a[i][n+2]=2;a[x][y]=1;cx[0]=x;cy[0]=y;int imj;for(i=1;i<=l;i++){fin>>z;x+=dx[z-1];y+=dy[z-1];a[x][y]=1;cx[i]=x;cy[i]=y;if(!ok)for(j=0;j<i;j++)if(cx[i]==cx[j]&&cy[i]==cy[j]){ok=1;for(int k=0;k<j;k++)a[cx[k]][cy[k]]=0;fout<<i-j<<'\n';imj=i-j;}}for (i=1;i<=n+1&&ok;i++)for(j=1;j<=n+1&&ok;j++){if(a[i][j]==0)if(verif(i,j)){ok=0;filll(i,j);}}fout<<nrceva+imj/2-1<<'\n';} ^ user.cpp:2:963: warning: ‘imj’ may be used uninitialized in this function [-Wmaybe-uninitialized] using namespace std;ifstream fin("zona.in");ofstream fout("zona.out");int dx[]={-1,0,1,0};int dy[]={0,1,0,-1};int nrceva,ok,x,y,n,l,x1,y1,i,j,a[110][110],z,cx[50000],cy[50000];int verif(int x,int y){int x1=x,x2=x,y1=y,y2=y;while(a[x][y1]==0)y1--;if(!y1)return 0;while(a[x][y2]==0)y2++;if(!y2)return 0;while(a[x1][y]==0)x1--;if(!x1)return 0;while(a[x2][y]==0)x2--;if(!x2)return 0;return 1;}void filll(int x,int y){a[x][y]=1;nrceva++;for(int k=0;k<4;k++)if(a[x+dx[k]][y+dy[k]]==0)filll(x+dx[k],y+dy[k]);}int main(){fin>>x>>y>>n>>l;x++;y++;int xi=x;int yi=y;int is;for (i=0;i<=n+1;i++) a[0][i]=a[n+2][i]=a[i][0]=a[i][n+2]=2;a[x][y]=1;cx[0]=x;cy[0]=y;int imj;for(i=1;i<=l;i++){fin>>z;x+=dx[z-1];y+=dy[z-1];a[x][y]=1;cx[i]=x;cy[i]=y;if(!ok)for(j=0;j<i;j++)if(cx[i]==cx[j]&&cy[i]==cy[j]){ok=1;for(int k=0;k<j;k++)a[cx[k]][cy[k]]=0;fout<<i-j<<'\n';imj=i-j;}}for (i=1;i<=n+1&&ok;i++)for(j=1;j<=n+1&&ok;j++){if(a[i][j]==0)if(verif(i,j)){ok=0;filll(i,j);}}fout<<nrceva+imj/2-1<<'\n';} ^