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C (clang), 116 102 bytes j,k;f(i){for(j=i;j--;printf("#"));for(j=i-1;j--;printf("#"))for(k=i-2,printf("\n#");k--;printf(" "));} Try it online! Sometimes, it's better to use functions when yo...
Remove print's parentheses when it's a single string print strangely works without parentheses, however, it only applies to single strings. In other words, it can't do the same for other variables...
Emoji, 24 bytes 💬Hello, World!💬➡ Try it online!
SQLite, 21 bytes select'Hello, World!' Try it online!
jq --null-input --raw-output, 15 bytes "Hello, World!" Try it online! They kept saying that jq is the language of September 2021. Still surprised no one even made a Hello, World! on it.
I'm bored. Let's do something. lmao While I was Somewhere Else, I went to make suggestions for designs on their sites, and no impact really occured. However, since I'm now a Codidactian (not a Cod...
C (clang), 206 bytes main(i){char*s="YWUSQOMKIGECABDFHJLNPRTVXZ";for(i=13;i>0;printf("%c%c%c%c%c%c%c%c%c%c%c%c%c%c\n",s[-1+i],s[0+i],s[1+i],s[2+i],s[3+i],s[4+i],s[5+i],s[6+i],s[7+i],s[8+i],s[...
Convenient whitespace removal Here are instances where you can remove whitespace: Strings If you assigned or printed a string, then the next supposed line of code can lean on the right double-qu...
Lua, 51 bytes P1: print("print(tonumber(io.read())+"..io.read()..")") Try it online! P2 (given I inputted 10, 29 bytes): print(tonumber(io.read())+10) Try it online!
Lua, 41 40 bytes x=0 y=1while""do print(x)x=x+y y=y+2 end Try it online!
Python 3, 34 bytes x=0;y=1 while 1:x+=y;print(x);y+=2 Try it online! 1 is the int equivalent to True, which helps save bytes.
Abuse (as few) libraries (as possible) We don't want to use too much libraries when playing challenges. Sometimes, libraries aren't used at all in some answers in C. What if we want to shorten so...
Python 3, 167 127 118 117 94 63 bytes def f(a,b): y=0 for z in range(len(a)):y+=a[z]*b**z print(y) Try it online! Close gap to @user's lambda answer! Golfed 40 bytes thanks to @user's...
graphical-output Usage info: Graphical output challenges involve outputting images or illustrations using graphics. Detailed wiki: (uses text from CGCC's) Graphical output challenges invol...
The C (gcc) implies extensions - it will only work with that specific compiler under it's default setting GNU17 (equivalent to -std=gnu17), which is mostly a superset of standard C. This also inclu...
Implementation defines the language, so if you use extensions to a language, you should add + ... extensions to the header. E.g. for a C post using gcc extensions, the header begin with # C (gcc...
C (clang), 47 45 43 bytes i,j;main(){for(;printf("%i ",i-=~j);j+=2);} Try it online! Golfed 2 bytes from inspiration of @Shaggy's answer. Golfed 2 bytes by @m90.
In my user preferences in "Edit Profile", under the "Link Stack Exchange Account" heading, this shows up: An association with Code Golf Stack Exchange needs to be added for this site.
Swift 5.4, 17 bytes func f(){f()};f() Pretty simple. It just calls itself until it stack overflows. You need to compile and run it, not just do it in the REPL, because the REPL just drops you b...
JavaScript (Node.js), 51 bytes n=[];f=(a)=>a&&a.map?(n.push(a.length),f(a[0]),n):n Run f on your input, e.g. f([[],[]]). Explanation: n=[]; // make a global array to hold the res...
JavaScript (Node.js), 81 bytes d=(p,i=2)=>i<p?!(p%i)||d(p,i+1):0 f=(n,a=2,p=a+1)=>d(p)?f(n,a,p+1):p-a<n?f(n,p):a Try it online! Explanation: d is a helper function that returns t...
C (gcc), 126 129 bytes N=9999;f(n){int p[N],i,j,P;memset(p,1,N);for(i=P=2;i*i<N;i++)if(p[i]){for(j=i*i;j<N;j+=i)p[j]=0;i-P>=n?j=N:(P=i);}e:return P;} Try it online! This is an integer...
Husk, 6 bytes Fo+hx0 Try it online! there's got to be a smarter way to do this with grouping.
