Created
August 8, 2016 06:51
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Tomohiko Sakamoto's Algorithm
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| int dow(int y, int m, int d) { | |
| static int t[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4}; | |
| y -= m < 3; | |
| return (y + y/4 - y/100 + y/400 + t[m-1] + d) % 7; | |
| } |
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