Compilare: main.cpp: In function 'int main()': main.cpp:18:65: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] gcd = __gcd (__gcd (__gcd (rmq [k - 1][i][j], rmq [k - 1][i + 1 << (k - 1)][j]), rmq [k - 1][i][j + 1 << (k - 1)]), rmq [k - 1][i + 1 << (k - 1)][j + 1 << (k - 1)]); ~~^~~ main.cpp:18:103: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] gcd = __gcd (__gcd (__gcd (rmq [k - 1][i][j], rmq [k - 1][i + 1 << (k - 1)][j]), rmq [k - 1][i][j + 1 << (k - 1)]), rmq [k - 1][i + 1 << (k - 1)][j + 1 << (k - 1)]); ~~^~~ main.cpp:18:135: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] gcd = __gcd (__gcd (__gcd (rmq [k - 1][i][j], rmq [k - 1][i + 1 << (k - 1)][j]), rmq [k - 1][i][j + 1 << (k - 1)]), rmq [k - 1][i + 1 << (k - 1)][j + 1 << (k - 1)]); ~~^~~ main.cpp:18:153: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] gcd = __gcd (__gcd (__gcd (rmq [k - 1][i][j], rmq [k - 1][i + 1 << (k - 1)][j]), rmq [k - 1][i][j + 1 << (k - 1)]), rmq [k - 1][i + 1 << (k - 1)][j + 1 << (k - 1)]); ~~^~~