Compilare: user.cpp: In function ‘int main()’: user.cpp:15:18: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] for(i=1;i+1<<j-1<=n;i++) ^ user.cpp:16:30: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] if(v[m[i][j-1]]<v[m[i+1<<(j-1)][j-1]]) m[i][j]=m[i][j-1]; ^ user.cpp:17:25: warning: suggest parentheses around ‘+’ inside ‘<<’ [-Wparentheses] else m[i][j]=m[i+1<<(j-1)][j-1]; ^