Compilare: user.cpp:10:24: warning: narrowing conversion of ‘-1’ from ‘int’ to ‘unsigned int’ inside { } [-Wnarrowing] unsigned di[]={-1,0,1,0},dj[]={0,1,0,-1}; ^ user.cpp:10:40: warning: narrowing conversion of ‘-1’ from ‘int’ to ‘unsigned int’ inside { } [-Wnarrowing] unsigned di[]={-1,0,1,0},dj[]={0,1,0,-1}; ^ user.cpp: In function ‘void lee(int, int)’: user.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(inou==i2 && jnou==j2) {d[inou][jnou]=d[c[p].i][c[p].j]+1;p=u+1;break;} ^ user.cpp:34:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(inou==i2 && jnou==j2) {d[inou][jnou]=d[c[p].i][c[p].j]+1;p=u+1;break;} ^