Problem18.py

def solve(triangle):
	while len(triangle) > 1:
		t0 = triangle.pop()
		t1 = triangle.pop()
		triangle.append([max(t0[i], t0[i+1]) + value for i, value in enumerate(t1)])
	return triangle[0][0]

def main():
	triangle = """\
                   75
                 95 64
               17 47 82
              18 35 87 10
             20 04 82 47 65
           19 01 23 75 03 34
          88 02 77 73 07 63 67
         99 65 04 28 06 16 70 92
       41 41 26 56 83 40 80 70 33
      41 48 72 33 47 32 37 16 94 29
     53 71 44 65 25 43 91 52 97 51 14
    70 11 33 28 77 73 17 78 39 68 17 57
   91 71 52 38 17 14 91 43 58 50 27 29 48
  63 66 04 68 89 53 67 30 73 16 69 87 40 31
 04 62 98 27 23 09 70 98 73 93 38 53 60 04 23"""

    	triangle = [map(int,row.split()) for row in triangle.splitlines()]
    	print solve(triangle)

if __name__ == '__main__':
	main()