View Code of Problem 8

#include <iostream>
#include <string.h>
using namespace std;

int main(){
    int n,day[13]={-1,31,28,31,30,31,30,31,31,30,31,30,31},l_num,prior,prev,sum;
    char num[10];
    scanf("%d",&n);
    getchar();
    
    while(n--){
        scanf("%s",&num);
        l_num = num[strlen(num) - 1] - '0';
        
        if(l_num == 0)
            prev = 9;
        else
            prev = l_num - 1;
        
        if(l_num == 9)
            prior = 0;
        else
            prior = l_num + 1;
        
        sum = 0;
        for(int j = 1;j <= 12;j ++){
            for(int k = 1;k <= day[j];k ++){
                if(k%10 == prev || k%10 == prior)
                    continue;
                else
                    sum ++;
            }
        }
        printf("%d\n",sum);
    }
    return 0;
}