Compilare: main.cpp: In function 'int main()': main.cpp:19:25: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 19 | if (x&(1<<i)==0&&x&(1<<i+1)==1&&c[x-1<<i]==0) c[x]=1; | ~~~~~~^~~ main.cpp:19:37: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] 19 | if (x&(1<<i)==0&&x&(1<<i+1)==1&&c[x-1<<i]==0) c[x]=1; | ~^~ main.cpp:19:40: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 19 | if (x&(1<<i)==0&&x&(1<<i+1)==1&&c[x-1<<i]==0) c[x]=1; | ~~~~~~~~^~~ main.cpp:19:48: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] 19 | if (x&(1<<i)==0&&x&(1<<i+1)==1&&c[x-1<<i]==0) c[x]=1; | ~^~ main.cpp:16:15: warning: iteration 4998 invokes undefined behavior [-Waggressive-loop-optimizations] 16 | if(c[x]!=1) | ~~~^ main.cpp:14:14: note: within this loop 14 | for(x=2;x<(1<<22);x++) | ~^~~~~~~~