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#include #define MAX 9999 int ddd[] = {31,28,31,30,31,30,31,31,30,31,30,31}; int is_leap_year(int y) { return ( y % 4 == 0 )&& (( y % 100 != 0) || (y % 400 == 0) ); } int hash(char * str) { int val = 0; char *ptr; ptr = str; while(*ptr != '\0') { int tmp; val = (val > 24); val = val^tmp; } ptr++; } return val % MAX; } void getAdd(char *buff, int y, int m , int d, int i) { char buf[9]; memset(buf..

#include int ddd[] = {31,28,31,30,31,30,31,31,30,31,30,31}; int is_leap_year(int y) { return ( y % 4 == 0 )&& (( y % 100 != 0) || (y % 400 == 0) ); } int getAdd(int y, int m , int d, int i) { d += i; while(d > ddd[m - 1]) { if(m == 2 && is_leap_year(y)) d -= 29; else d -= ddd[m - 1]; m++; if(m > 12) { m -= 12; y++; } } printf("%04d%02d%02d\n", y, m, d); } main() { int yyyy,mm,dd; int i; yyyy = 2..