|
|
вернуться в форумDiscuss calculation for n=4 Can you help me with mathematic calculation, I can't get 670. First I use next algorithm to count lycky integers, and he is quite good as you see:
double a[8]; int k = 0; bool log = false; if (n == 4) { do { a[k] = broj % 10; broj = broj / 10; k = k + 1; } while (broj != 0); if ( a[0]+a[1] == a[2]+a[3]) log = true; He gets result 615. After that I calculate how many 4 digit lucky numbers which begins with zero have, and I get 18. That is 615+18 = 643. Did I miss something? Obviosly I did, but I can't see, please help! Re: Discuss calculation for n=4 Послано u7gN 9 июл 2006 01:24 simply try to use function div_t, u can find it in index. |
|
|