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puts(v)may work as well (not very reliable but reliable enough. It depends on the ASLR. Most runs works => good enough). \$\endgroup\$f(n){while(n--)puts(f);}but then saw that function was already submitted, so I pivoted to this.puts(v)will vary based on the input/run, so I decided to go withputs(*v). Maybe I was too strict with the rules on this one. \$\endgroup\$f(n){for(;n--;)puts(f);)is the same length. \$\endgroup\$main(a,v)int**v;{for(a=*v[1];a--;puts(*v));}On my machine, to input 0 use./a.out '' '' '' '', To input 32./a.out ' ' '' '' ''. 8224./a.out ' ' '' '' ''for 2097184 use./a.out ' ' ' ' '' ''for 8192./a.out '' ' ' '' ''. Not sure how to escape'\x01'in bash but that is a problem of bash not the program. \$\endgroup\$