Compilare: main.cpp: In function 'bool ok(int, int)': main.cpp:26:36: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (a[l][c] == 0 || a[l][c] <= k1 && ok1 || a[l][c] >= k2 && ok2) ~~~~~~~~~~~~~~^~~~~~ main.cpp:26:60: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (a[l][c] == 0 || a[l][c] <= k1 && ok1 || a[l][c] >= k2 && ok2) ~~~~~~~~~~~~~~^~~~~~ main.cpp: In function 'int main()': main.cpp:56:70: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (ok(l + dl[i], c + dc[i]) && (!dp[l + dl[i]][c + dc[i]] || ok1 && !OK1[l + dl[i]][c + dc[i]] || ok2 && !OK2[l + dl[i]][c + dc[i]])) { ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:56:107: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if (ok(l + dl[i], c + dc[i]) && (!dp[l + dl[i]][c + dc[i]] || ok1 && !OK1[l + dl[i]][c + dc[i]] || ok2 && !OK2[l + dl[i]][c + dc[i]])) { ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~