24 lines
642 B
C++
24 lines
642 B
C++
/** 2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.
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What is the smallest positive number that is evenly divisible by all of the numbers from 1 to 20? */
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#include "0.hpp"
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int main()
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{
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const int _max = 20;
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uu num[_max] = {0};
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for(int i = 0; i < _max; i++) num[i] = i + 1;
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for(int i = 0; i < _max; i++)
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if(num[i] > 1)
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for(int j = i + 1; j < _max; j++)
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if(num[j] % num[i] == 0) num[j] /= num[i];
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uu divnum = 1;
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for(int i = 0; i < _max; i++) {
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divnum *= num[i];
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cout << num[i] << " ";
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}
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cout << endl;
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cout << divnum << endl;
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return 0;
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}
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