Compilare: user.cpp: In function ‘int main()’: user.cpp:26:22: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if( i&(1<<j) != 0 ) ~~~~~~~^~~~ user.cpp:28:38: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if( k != j && ( i&(1<<k) != 0 && c[k][j] )) ~~~~~~~^~~~ user.cpp:24:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for( i = 1 ; i < ( 1<<n ) ; i++ ) ^~~ user.cpp:31:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ minim = f_mare; ^~~~~