Maximum triangle path sum: Difference between revisions

=={{header|C++}}==

{{trans|Ada}}

<lang cpp>

#include <iostream>

int main( int argc, char* argv[] )

{

int triangle[] =

{

55,

94, 48,

95, 30, 96,

77, 71, 26, 67,

97, 13, 76, 38, 45,

7, 36, 79, 16, 37, 68,

48, 7, 9, 18, 70, 26, 6,

18, 72, 79, 46, 59, 79, 29, 90,

20, 76, 87, 11, 32, 7, 7, 49, 18,

27, 83, 58, 35, 71, 11, 25, 57, 29, 85,

14, 64, 36, 96, 27, 11, 58, 56, 92, 18, 55,

2, 90, 3, 60, 48, 49, 41, 46, 33, 36, 47, 23,

92, 50, 48, 2, 36, 59, 42, 79, 72, 20, 82, 77, 42,

56, 78, 38, 80, 39, 75, 2, 71, 66, 66, 1, 3, 55, 72,

44, 25, 67, 84, 71, 67, 11, 61, 40, 57, 58, 89, 40, 56, 36,

85, 32, 25, 85, 57, 48, 84, 35, 47, 62, 17, 1, 1, 99, 89, 52,

6, 71, 28, 75, 94, 48, 37, 10, 23, 51, 6, 48, 53, 18, 74, 98, 15,

27, 2, 92, 23, 8, 71, 76, 84, 15, 52, 92, 63, 81, 10, 44, 10, 69, 93

};

int last = sizeof( triangle ) / sizeof( int ),

tn = 1;

while( ( tn * ( tn + 1 ) / 2 ) < last ) tn += 1;

last--;

for( int n = tn; n >= 2; n-- )

{

for( int i = 2; i <= n; i++ )

{

triangle[last - n] = triangle[last - n] + std::max(triangle[last - 1], triangle[last]);

last--;

}

last--;

}

std::cout << "Maximum total: " << triangle[0] << "\n\n";

return system( "pause" );

}

</lang>

{{out}}

<pre>Maximum total: 1320</pre>