aboutsummaryrefslogtreecommitdiffstats
path: root/08-Largest-Product-In-a-Series
diff options
context:
space:
mode:
Diffstat (limited to '08-Largest-Product-In-a-Series')
-rwxr-xr-x08-Largest-Product-In-a-Series/productofdigitsbin0 -> 16680 bytes
-rw-r--r--08-Largest-Product-In-a-Series/productofdigits.c50
-rw-r--r--08-Largest-Product-In-a-Series/productofdigits.py20
3 files changed, 70 insertions, 0 deletions
diff --git a/08-Largest-Product-In-a-Series/productofdigits b/08-Largest-Product-In-a-Series/productofdigits
new file mode 100755
index 0000000..9d3f349
--- /dev/null
+++ b/08-Largest-Product-In-a-Series/productofdigits
Binary files differ
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))