Compilare: user.cpp: In function ‘int main()’: user.cpp:33:9: warning: variable ‘xd’ set but not used [-Wunused-but-set-variable] int xd, yd, xs, ys, xf, yf, rez = 0; ^ user.cpp:69:28: warning: ‘yf’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(mat[1][yf-1] == -1) ^ user.cpp:61:17: warning: ‘xf’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(dp[xf][yf] != -1){ ^ user.cpp:67:28: warning: ‘ys’ may be used uninitialized in this function [-Wmaybe-uninitialized] while(mat[1][ys+1] == -1) ^ user.cpp:60:19: warning: ‘xs’ may be used uninitialized in this function [-Wmaybe-uninitialized] BFSQ(xs,ys,dp); ^ user.cpp:78:26: warning: ‘yd’ may be used uninitialized in this function [-Wmaybe-uninitialized] rez += (2*ys - yd - yf - 2); ^