C :

#include <stdio.h>
#include <string.h>
int main(){

    int i,j;
    char mon1[19][10]={"pop","no","zip","zotz","tzec","xul","yoxkin","mol","chen","yax","zac","ceh","mac","kankin","muan","pax","koyab","cumhu","uayet"};
    char mon2[21][10]={"imix","ik","akbal","kan","chicchan","cimi","manik","lamat","muluk","ok","chuen","eb","ben","ix","mem","cib","caban","eznab","canac","ahau"};
    int day,year;
    int n,total;
    scanf("%d",&n);
    printf("%d\n",n);
    for (i=0;i<n;i++)
    {
        char mon[10]={""};
        scanf("%d.%s %d",&day,mon,&year);
        for (j=0;j<19;j++)
            if (strcmp(mon,mon1[j])==0)
                break;
        total=j*20+day+year*365;
        day=(total)%13+1 ;
        year=total/260;
        j=total%20;
        printf("%d %s %d\n",day,mon2[j],year);
    }
    return 0;
}

C++ :

#include <iostream>
#include<cstdio>
#include<cstring>

static inline unsigned habbtonum(unsigned day,const char*month,unsigned year)
{
    unsigned days(year * 365 + day);
    if(!strcmp( month,"no"))
    {
        days+=20;
    }else if (!strcmp(month,"zip")){
        days += 40;
    } else if (!strcmp(month,"zotz")){
        days += 60;
    } else if (!strcmp(month,"tzec")){
        days += 80;
    } else if (!strcmp(month,"xul")){
        days += 100;
    } else if (!strcmp(month,"yoxkin")){
        days += 120;
    } else if (!strcmp(month,"mol")){
        days += 140;
    } else if (!strcmp(month,"chen")){
        days += 160;
    } else if (!strcmp(month,"yax")){
        days += 180;
    } else if (!strcmp(month,"zac")){
        days += 200;
    } else if (!strcmp(month,"ceh")){
        days += 220;
    } else if (!strcmp(month,"mac")){
        days += 240;
    } else if (!strcmp(month,"kankin")){
        days += 260;
    } else if (!strcmp(month,"muan")){
        days += 280;
    } else if (!strcmp(month,"pax")){
        days += 300;
    } else if (!strcmp(month,"koyab")){
        days += 320;
    } else if (!strcmp(month,"cumhu")){
        days += 340;
    } else if (!strcmp(month,"uayet")){
        days += 360;
    }

    return days;
}
static inline void printTzolkin (unsigned days)
{
    unsigned year(days/260);
    days-=260*year;
    printf( "%d ",days%13+1);
    switch(days%20)
    {
        case 0:     printf("imix");     break;
        case 1:     printf("ik");       break;
        case 2:     printf("akbal");    break;
        case 3:     printf("kan");      break;
        case 4:     printf("chicchan"); break;
        case 5:     printf("cimi");     break;
        case 6:     printf("manik");    break;
        case 7:     printf("lamat");    break;
        case 8:     printf("muluk");    break;
        case 9:     printf("ok");       break;
        case 10:    printf("chuen");    break;
        case 11:    printf("eb");       break;
        case 12:    printf("ben");      break;
        case 13:    printf("ix");       break;
        case 14:    printf("mem");      break;
        case 15:    printf("cib");      break;
        case 16:    printf("caban");    break;
        case 17:    printf("eznab");    break;
        case 18:    printf("canac");    break;
        case 19:    printf("ahau");     break;
    }
    printf(" %d\n",year);
}

int main()
{
    unsigned count( 0),day(0),year(0);
    char month[8]={"\0"};
    scanf("%d",&count);
    printf("%d\n",count);

    while(count--)
    {
        scanf("%d.%s%d",&day,month,&year);
        printTzolkin(habbtonum(day,month,year));
    }
    return 0;
}