Submission

Score: 100

User: mnmpyuuu

Problemset: บวกเลขฐาน

Language: c

Time: 0.001 second

Submitted On: 2025-10-10 22:57:34

/*#include<stdio.h>
#include<math.h>
#include<string.h>
int toten(int n,char a[])
{
    int sum=0;
    int m=strlen(a)-1;
    for(int i=0;i<=m;i++)
    {
        int x;
        if(a[i]>='A'&&a[i]<='F')
        {
            x=a[i]-'0'-7;
        }
        else
        {
            x=a[i]-'0';
        }
        sum=sum+(pow(n,m-i))*x;
    }
    return sum;

}

int main()
{
    int base;
    scanf("%d",&base);
    char a[100];
    char b[100];
    scanf("%s",a);
    scanf("%s",b);
    int x;
    x=toten(base,a);
    int y;
    y=toten(base,b);
    int sum=x+y;
    //printf("%d",sum);
    int m=sum,i=0;
    int r[100];
    while(m!=0)
    {
        r[i]=m%base;
        m=m/base;
        i++;
    }
    for(int j=i-1;j>=0;j--)
    {
        if(r[j]>=10)
        {
            printf("%c",r[j]-10+'A');
        }
        else
        {
            printf("%d",r[j]);
        }

    }

}*/
#include <stdio.h>
#include <math.h>
#include <string.h>

int toten(int n, char a[])
{
    int sum = 0;
    int m = strlen(a) - 1;
    for (int i = 0; i <= m; i++)
    {
        int x;
        if (a[i] >= 'A' && a[i] <= 'F')
            x = a[i] - '0' - 7;  // 'A' (65) - '0'(48) -7 = 10
        else
            x = a[i] - '0';
        sum += (int)pow(n, m - i) * x;
    }
    return sum;
}

int main()
{
    int base;
    scanf("%d", &base);
    char a[100], b[100];
    scanf("%s", a);
    scanf("%s", b);

    int x = toten(base, a);
    int y = toten(base, b);
    int sum = x + y;

    // ??Ҽ???????ٹ??
    if (sum == 0) {
        printf("0\n");
        return 0;
    }

    int r[100];
    int i = 0;
    int m = sum;
    while (m != 0)
    {
        r[i] = m % base;
        m /= base;
        i++;
    }

    for (int j = i - 1; j >= 0; j--)
    {
        if (r[j] >= 10)
            printf("%c", r[j] - 10 + 'A');
        else
            printf("%d", r[j]);
    }
    printf("\n");
}