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author | mjfernez <mjfernez@gmail.com> | 2020-02-09 15:16:26 -0500 |
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committer | mjfernez <mjfernez@gmail.com> | 2020-02-09 15:16:26 -0500 |
commit | 93ea7fe5957b62f18e8fbd17a21696bd7de6332d (patch) | |
tree | d90aed60d687bcf195f1150777f37cbe8a149814 /prodgrid.c | |
parent | 125ec5bc3d8bfc224b7d32bcfbbc37b9fb5d441f (diff) | |
download | Project_Euler_Solutions-93ea7fe5957b62f18e8fbd17a21696bd7de6332d.tar.gz |
Organized everything, update README
Diffstat (limited to 'prodgrid.c')
-rw-r--r-- | prodgrid.c | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/prodgrid.c b/prodgrid.c deleted file mode 100644 index a4f27c3..0000000 --- a/prodgrid.c +++ /dev/null @@ -1,87 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> - -//Problem 11 - Largest Product in a grid - -int matrix[20][20]= {{8, 2, 22, 97, 38, 15, 0, 40, 0, 75, 4, 5, 7, 78, 52, 12, 50, 77, 91, 8}, - {49, 49, 99, 40, 17, 81, 18, 57, 60, 87, 17, 40, 98, 43, 69, 48, 4, 56, 62, 0}, - {81, 49, 31, 73, 55, 79, 14, 29, 93, 71, 40, 67, 53, 88, 30, 3, 49, 13, 36, 65}, - {52, 70, 95, 23, 4, 60, 11, 42, 69, 24, 68, 56, 1, 32, 56, 71, 37, 2, 36, 91}, - {22, 31, 16, 71, 51, 67, 63, 89, 41, 92, 36, 54, 22, 40, 40, 28, 66, 33, 13, 80}, - {24, 47, 32, 60, 99, 3, 45, 2, 44, 75, 33, 53, 78, 36, 84, 20, 35, 17, 12, 50}, - {32, 98, 81, 28, 64, 23, 67, 10, 26, 38, 40, 67, 59, 54, 70, 66, 18, 38, 64, 70}, - {67, 26, 20, 68, 2, 62, 12, 20, 95, 63, 94, 39, 63, 8, 40, 91, 66, 49, 94, 21}, - {24, 55, 58, 5, 66, 73, 99, 26, 97, 17, 78, 78, 96, 83, 14, 88, 34, 89, 63, 72}, - {21, 36, 23, 9, 75, 0, 76, 44, 20, 45, 35, 14, 0, 61, 33, 97, 34, 31, 33, 95}, - {78, 17, 53, 28, 22, 75, 31, 67, 15, 94, 3, 80, 4, 62, 16, 14, 9, 53, 56, 92}, - {16, 39, 5, 42, 96, 35, 31, 47, 55, 58, 88, 24, 0, 17, 54, 24, 36, 29, 85, 57}, - {86, 56, 0, 48, 35, 71, 89, 7, 5, 44, 44, 37, 44, 60, 21, 58, 51, 54, 17, 58}, - {19, 80, 81, 68, 5, 94, 47, 69, 28, 73, 92, 13, 86, 52, 17, 77, 04, 89, 55, 40}, - {4, 52, 8, 83, 97, 35, 99, 16, 7, 97, 57, 32, 16, 26, 26, 79, 33, 27, 98, 66}, - {88, 36, 68, 87, 57, 62, 20, 72, 3, 46, 33, 67, 46, 55, 12, 32, 63, 93, 53, 69}, - {4, 42, 16, 73, 38, 25, 39, 11, 24, 94, 72, 18, 8, 46, 29, 32, 40, 62, 76, 36}, - {20, 69, 36, 41, 72, 30, 23, 88, 34, 62, 99, 69, 82, 67, 59, 85, 74, 4, 36, 16}, - {20, 73, 35, 29, 78, 31, 90, 1, 74, 31, 49, 71, 48, 86, 81, 16, 23, 57, 5, 54}, - {1, 70, 54, 71, 83, 51, 54, 69, 16, 92, 33, 48, 61, 43, 52, 1, 89, 19, 67, 48}}; - -int parseMatrix(int mat[20][20]){ - int maxi, i, j, k, c = 0; - int prod = 1; - //parse left to right - for(i; i < 20; i++){ - for(j; j < 16; j++){ - k = j; - prod = 1; - for(k; k<j+4; k++){ - prod*=mat[i][k]; - if(prod > maxi) - maxi=prod; - } - } - } - //parse up and down - for(j=0; j < 20; j++){ - for(i=0; i < 16; i++){ - k = i; - prod = 1; - for(k; k < i+4; k++){ - prod*=mat[k][j]; - if(prod > maxi) - maxi=prod; - } - } - } - - //parse diagonal right - for(i=0; i < 16; i++){ - for(j=0; j < 16; j++){ - prod = 1; - for(c = 0; c < 4; c++){ - prod*=mat[i+c][j+c]; - if(prod > maxi) - maxi=prod; - } - } - } - - //parse diagonal left - for(i=0; i < 16; i++){ - for(j=19; j > 3; j--){ - prod = 1; - for(c = 0; c < 4; c++){ - prod*=mat[i+c][j-c]; - if(prod > maxi) - maxi=prod; - } - } - } - - return maxi; -} - - -int main(){ - int ans = parseMatrix(matrix); - printf("%d\n", ans); - return 0; -} |