p3.cpp

#include<stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
    bool first = true;
    for (int times = 5 ; times > 0 ; times--) {
        int data_num = 0, a = 0,b = 0;
        int numArray[100];
        scanf("%d",&data_num);
        for(int i = 0 ; i < data_num ; i++) {
            scanf("%d",&numArray[i]);
        }

        if(first) first=false;
        else printf("\n");

        /* check is it correct */
        bool correct = true;
        bool suf[data_num];
        for(int i = 0 ; i < data_num-1 ; i++) {
            suf[abs(numArray[i+1]-numArray[i])-1] = true;
        }
        for(int i = 0 ; i < data_num-1 ; i++) {
            if (!suf[i])
            {
                printf("INCORRECT\n");
                correct = false;
                break;
            }
        }
        if(correct) {
            /* the first */

            bool in = false;
            while(numArray[0]>10)
            {
                in = true;
                int sec = 0;
                for(int digit = 0;1;digit++) {
                    if(((int)numArray[0]/((int)pow(10, digit)))%10 != 0 && numArray[0] / ((int)pow(10, digit)) > 0 ) {
                        sec += ((int)numArray[0]/((int)pow(10, digit)))%10;
                    }
                    else {
                        printf("%d", sec);
                        break;
                    }
                }
                numArray[0] = sec;
            }
            if(!in) printf("%d",numArray[0]);
            printf(" ");

            /* the second */
            int sum = 0;
            int last = abs(numArray[data_num-1]);
            for(int i = 1 ; i <= last ; i++) {
                sum += pow(i,i);
            }
            printf("%d\n", sum%10);
        }
    }
    return 0;
}