纯C #include <stdlib.h> #include <stdio.h> int main() { int month_days[12] = {31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365}; int year, month, day; while(scanf("%d %d %d\n", &year, &month, &day) != EOF) { int days = 0; if(month >=...