Array of a very long list of ints [closed]

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I'm trying to solve the 8th problem of the project Euler and I'm stuck because I can't manage to create a very long array of char.

There must be a stupid semantic issue, but I'm unable 开发者_开发知识库to find it.

   char cifre[] = "very long list of numbers here";

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Such example works with gcc:

#include <stdio.h>

int main (void)
{
    char *x = 
"73167176531330624919225119674426574742355349194934\
96983520312774506326239578318016984801869478851843\
85861560789112949495459501737958331952853208805511\
12540698747158523863050715693290963295227443043557\
66896648950445244523161731856403098711121722383113\
62229893423380308135336276614282806444486645238749\
30358907296290491560440772390713810515859307960866\
70172427121883998797908792274921901699720888093776\
65727333001053367881220235421809751254540594752243\
52584907711670556013604839586446706324415722155397\
53697817977846174064955149290862569321978468622482\
83972241375657056057490261407972968652414535100474\
82166370484403199890008895243450658541227588666881\
16427171479924442928230863465674813919123162824586\
17866458359124566529476545682848912883142607690042\
24219022671055626321111109370544217506941658960408\
07198403850962455444362981230987879927244284909188\
84580156166097919133875499200524063689912560717606\
05886116467109405077541002256983155200055935729725\
71636269561882670428252483600823257530420752963450"
;

    printf ("%s",x);
}

It prints your long number on screen without any problem. Symbol \ in string tells compiler that string literal is continued on next line. You are free to modify this example as you want. But please note that modifying content of string pointed by x isn't good idea.

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Does adding a \ after each line of that 1000 digit number help?

It allows you to enter longer literals that span multiple lines. Alternatively, surround each line of that long string in ", it will do the same thing.

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As others have pointed out, you should probably allocate it dynamically. However, your question is somewhat vague as you didn't indicate where you are running into trouble or what your idea of "very long" is.

But here's some code to get you started:

#define ARRAY_SIZE 10240

char* pArray = (char*)malloc(ARRAY_SIZE);
memset(pArray, 0, ARRAY_SIZE);
free(pArray);