計算第幾天
輸入一個有效 y 年 m 月 d 日,計算當日是那一年的第幾天 (第 n 天)。例如,2018年1月2日是第2天。user_6817964
c_cpp
2 years ago
645 B
6
Indexable
#include <stdio.h> // printf int main() { int y, m, d, days, sum = 0; scanf_s("%d%d%d", &y, &m, &d); while (m > 1) { m --; switch (m) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: days = 31; break; case 4: case 6: case 9: case 11: days = 30; break; case 2: if ((y % 400 == 0) || ((y % 4 == 0) && (y % 100 != 0))) days = 29; else days = 28; break; default: days = 0; break; } sum += days; } int n = sum + d; printf("%d", n); }
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