usaco friday

#include<stdio.h>int main(){freopen("friday.in","r",stdin);freopen("friday.out","w",stdout);int n,y=1900,m=1,d=1,mmax=31,xq=1,a[8]={0,0,0,0,0,0,0,0};scanf("%d",&n);while (1) {d++;xq++;if (xq>7) xq=1;if (d>mmax) {m++;d=1;if (m>12) {y++;m=1;}if (m==1||m==3||m==5||m==7||m==8||m==10||m==12) mmax=31;else if (m==2) {if (y%400==0 || y%4==0 && y%100!=0) mmax=29; else mmax=28;} else mmax=30;}if (d==13) a[xq]++;if (y==(1900+n-1) && m==12 && d==31) break;}printf("%d %d %d %d %d %d %d\n",a[6],a[7],a[1],a[2],a[3],a[4],a[5]);return 0;}