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36 lines
1.0 KiB
C++
36 lines
1.0 KiB
C++
#include <iostream>
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using namespace std;
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int main()
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{
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int tra_cuu_nam[10] = {4, 2, 0, 6, 4, 2, 0, 6, 4, 2};
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int tra_cuu_thang[12] = {0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3, 5};
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int tra_cuu_thang_nam_nhuan[12] = {6, 2, 3, 6, 1, 4, 6, 2, 5, 0, 3, 5};
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char* tra_cuu_thu[] =
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{
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"Chu nhat",
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"Thu hai",
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"Thu ba",
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"Thu tu",
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"Thu nam",
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"Thu sau",
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"Thu bay"
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};
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int ngay, thang, nam, tong_gia_tri, gia_tri_nam, gia_tri_thang;
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cout << "Nhap ngay, thang, nam: ";
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cin >> ngay >> thang >> nam;
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gia_tri_nam = tra_cuu_nam[(nam/100 - 17)];
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if ((nam%4 == 0 && nam%100 != 0) || (nam%400 ==0))
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{
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gia_tri_thang = tra_cuu_thang_nam_nhuan[thang - 1];
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}
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else
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{
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gia_tri_thang = tra_cuu_thang[thang - 1];
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}
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tong_gia_tri = (gia_tri_nam + (nam%100) + (nam%100)/4 + gia_tri_thang + ngay)%7;
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cout << "Ngay " << ngay << " thang " << thang << " nam " << nam << " la " << tra_cuu_thu[tong_gia_tri] << endl;
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return 0;
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}
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