diff options
Diffstat (limited to '08-Largest-Product-In-a-Series')
| -rwxr-xr-x | 08-Largest-Product-In-a-Series/productofdigits | bin | 0 -> 16680 bytes | |||
| -rw-r--r-- | 08-Largest-Product-In-a-Series/productofdigits.c | 50 | ||||
| -rw-r--r-- | 08-Largest-Product-In-a-Series/productofdigits.py | 20 | 
3 files changed, 70 insertions, 0 deletions
| diff --git a/08-Largest-Product-In-a-Series/productofdigits b/08-Largest-Product-In-a-Series/productofdigitsBinary files differ new file mode 100755 index 0000000..9d3f349 --- /dev/null +++ b/08-Largest-Product-In-a-Series/productofdigits diff --git a/08-Largest-Product-In-a-Series/productofdigits.c b/08-Largest-Product-In-a-Series/productofdigits.c new file mode 100644 index 0000000..433c433 --- /dev/null +++ b/08-Largest-Product-In-a-Series/productofdigits.c @@ -0,0 +1,50 @@ +#include <stdlib.h> +#include <stdio.h> + +const char bigBoy[1001] = "73167176531330624919225119674426574742355349194934" +    "96983520312774506326239578318016984801869478851843" +    "85861560789112949495459501737958331952853208805511" +    "12540698747158523863050715693290963295227443043557" +    "66896648950445244523161731856403098711121722383113" +    "62229893423380308135336276614282806444486645238749" +    "30358907296290491560440772390713810515859307960866" +    "70172427121883998797908792274921901699720888093776" +    "65727333001053367881220235421809751254540594752243" +    "52584907711670556013604839586446706324415722155397" +    "53697817977846174064955149290862569321978468622482" +    "83972241375657056057490261407972968652414535100474" +    "82166370484403199890008895243450658541227588666881" +    "16427171479924442928230863465674813919123162824586" +    "17866458359124566529476545682848912883142607690042" +    "24219022671055626321111109370544217506941658960408" +    "07198403850962455444362981230987879927244284909188" +    "84580156166097919133875499200524063689912560717606" +    "05886116467109405077541002256983155200055935729725" +    "71636269561882670428252483600823257530420752963450"; +// parseNum: Splits in segements of r, to find out the largest product of digits +// for that segment size +// max is the maximum product found within the number +// x: the number (as a char string) to be parsed +// r: the range to parse over +long long parseNum(const char *x, int r){ +    int len = 1000; +    long max;  +    for(int i = 0; i < len - r; i++){ +        // Digits in ascii start at 48 +        long long prod =  (x[i] - 48); +        for(int k = i + 1; k < i + r; k++) +            prod *= (x[k] - 48); +        if(prod > max) +            max = prod; +    } +    return max; +} + + + +int main(){ +    long long p = parseNum(bigBoy, 13); +    printf("%ld\n", p); +    //printf("%ld\n", parseNum(bigBoy, 13)); +    return 0; +} diff --git a/08-Largest-Product-In-a-Series/productofdigits.py b/08-Largest-Product-In-a-Series/productofdigits.py new file mode 100644 index 0000000..0d1e132 --- /dev/null +++ b/08-Largest-Product-In-a-Series/productofdigits.py @@ -0,0 +1,20 @@ +import PIL +import math + +# Problem 8 - largest Product in a series +bigBoy = 7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450 + + +def parseNum(x, r): +    search = str(x) +    maxi = 0 +    for ch in range(0, len(search)-r): +        prod = int(search[ch]) +        for dig in range(ch+1, ch+r): +            prod *= int(search[dig]) +        if (prod > maxi): +            maxi = prod +    return maxi + + +print(parseNum(bigBoy, 13)) | 
