Compilare: user.cpp: In function ‘int main()’: user.cpp:9:51: warning: variable ‘left’ set but not used [-Wunused-but-set-variable] int n, i, k, j, minn = 0, maxx = -1250000000, left = 1, right, posMin,l; ^ user.cpp:9:61: warning: variable ‘right’ set but not used [-Wunused-but-set-variable] int n, i, k, j, minn = 0, maxx = -1250000000, left = 1, right, posMin,l; ^ user.cpp:20:13: warning: ‘posMin’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i-posMin+1>l) posMin=i-k+1,minn=s[i-k+1]; ^