Compilare: main.cpp: In function 'int main()': main.cpp:26:67: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] r[q][i][j] = max(max(r[q - 1][i][j],r[q - 1][i][j - 1 << (q - 1)]),max(r[q - 1][i - 1 << (q - 1)][j],r[q - 1][i - 1 << (q - 1)][j - 1 << (q - 1)])); ~~^~~ main.cpp:26:99: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] r[q][i][j] = max(max(r[q - 1][i][j],r[q - 1][i][j - 1 << (q - 1)]),max(r[q - 1][i - 1 << (q - 1)][j],r[q - 1][i - 1 << (q - 1)][j - 1 << (q - 1)])); ~~^~~ main.cpp:26:129: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] r[q][i][j] = max(max(r[q - 1][i][j],r[q - 1][i][j - 1 << (q - 1)]),max(r[q - 1][i - 1 << (q - 1)][j],r[q - 1][i - 1 << (q - 1)][j - 1 << (q - 1)])); ~~^~~ main.cpp:26:147: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] r[q][i][j] = max(max(r[q - 1][i][j],r[q - 1][i][j - 1 << (q - 1)]),max(r[q - 1][i - 1 << (q - 1)][j],r[q - 1][i - 1 << (q - 1)][j - 1 << (q - 1)])); ~~^~~ main.cpp:33:48: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] out << max(max(r[q][a1][b1],r[q][a1][x + 1 << q - 1]),max(r[q][x + 1 << q - 1][b1],r[q][x + 1 << q - 1][y + 1 << q - 1])) << '\n'; ~~^~~ main.cpp:33:74: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] out << max(max(r[q][a1][b1],r[q][a1][x + 1 << q - 1]),max(r[q][x + 1 << q - 1][b1],r[q][x + 1 << q - 1][y + 1 << q - 1])) << '\n'; ~~^~~ main.cpp:33:99: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] out << max(max(r[q][a1][b1],r[q][a1][x + 1 << q - 1]),max(r[q][x + 1 << q - 1][b1],r[q][x + 1 << q - 1][y + 1 << q - 1])) << '\n'; ~~^~~ main.cpp:33:115: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] out << max(max(r[q][a1][b1],r[q][a1][x + 1 << q - 1]),max(r[q][x + 1 << q - 1][b1],r[q][x + 1 << q - 1][y + 1 << q - 1])) << '\n'; ~~^~~