Compilare: user.cpp: In function ‘void Solve()’: user.cpp:105:72: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] { S[i & 1][0] = 1 ; for ( int j = 1; j <= i; ++j ) S[i & 1][j] = S[i - 1 & 1][j] + S[i - 1 & 1][j - 1] ; } ^ user.cpp:105:90: warning: suggest parentheses around ‘-’ in operand of ‘&’ [-Wparentheses] { S[i & 1][0] = 1 ; for ( int j = 1; j <= i; ++j ) S[i & 1][j] = S[i - 1 & 1][j] + S[i - 1 & 1][j - 1] ; } ^