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#include <stdio.h> #include <stdlib.h> #include <math.h> void Julian2UTC(int week,int seconds,int *year,int *month,int *day) { int JD = 2444245; double L,N,I,J; week = week * 7 + floor(seconds/86400); L = JD + 68569 + week; N = floor(( 4 * L ) / 146097); L = L - floor(( 146097 *N + 3 ) / 4); I = floor(( 4000 * ( L + 1 ) ) / 1461001); L = L - floor(( 1461 * I ) / 4) + 31; J = floor(( 80 * L ) / 2447); *day = L - floor(( 2447 * J ) / 80); L = floor(J / 11); *month = J + 2 - ( 12 *L ); *year = 100 * ( N - 49 ) + I + L; } void main() { int week,seconds; int year,month,day; scanf("%d,%d",&week,&seconds); Julian2UTC(week,seconds,&year,&month,&day); printf("year = %d\nmonth = %d\nday = %d\n",year,month,day); system("pause"); }