All the C you need for 6.046 Problem 7-1
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- libraries
#include <stdio.h>
#include <limit.h>

- macros
#define X 1
#define max(A, B) ((A) > (B) ? (A) : (B))

- arrays
array of SIZE_OF_ARRAY strings (with a max number of characters of SIZE_OF_ONE)
char x[SIZE_OF_ONE][SIZE_OF_ARRAY]

- files
FILE *somefile;
feof
(read using scanf)

- main
int main (int argc, char *argv[])

- scanf, fscanf, sscanf, ...
for exsample
fscanf(somefile, "%s", word)
reads one word from a file

- string stuff
strlen
strcat