Compilare: user.cpp: In function ‘int main()’: user.cpp:41:19: warning: unused variable ‘j’ [-Wunused-variable] int i, o, ox, oy, j, i2, x1, y1, steps, smin; ^ user.cpp:41:22: warning: unused variable ‘i2’ [-Wunused-variable] int i, o, ox, oy, j, i2, x1, y1, steps, smin; ^ user.cpp:41:41: warning: unused variable ‘smin’ [-Wunused-variable] int i, o, ox, oy, j, i2, x1, y1, steps, smin; ^ user.cpp:90:9: warning: ‘steps’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(steps>m[x1][y1] && m[x1][y1]>0 && x1>0 && x1<=s && y1>0 && y1<=s) steps=m[x1][y1]; ^