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Given input as a string, return an integer as the sum of all numbers found in the string?

+3 votes
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Given input as a string, return an integer as the sum of all numbers found in the string

Input: xyzonexyztwothreeeabrminusseven
Output : 1 + 23 + (-7) = 17

posted Jun 7, 2017 by anonymous

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do you mean sum of ascii representation of chars
I think question is very clear here its not about the ascii representation rather the word present in the string, look at the sample input and output provided in the question.

1 Answer

+1 vote

Not the exact solution but you can refer this program to get your job done.

#include<stdio.h>
#include<string.h>
void getSubString(char *ptr,int i);
int getSum(char *ptr,char *temp,int i);
main()
{
        char str[100];
        printf("Enter a string : ");
        scanf("%[^\n]",str);
        int i=0,sum=0;
        while(str[i])
        {
                str[i]=toupper(str[i]);
                i++;
        }
        char subStr[10];

        for(i=0;i<10;i++)
        {
                getSubString(subStr,i);
                sum=sum+getSum(str,subStr,i);
        }
        printf("SUM = %d\n",sum);
}
int getSum(char *ptr,char *subPtr,int num)
{
        char *temp=NULL;
        int sum=0;
        while(*ptr)
        {
                temp=strstr(ptr,subPtr);
                if(temp==NULL)
                        return sum;
                sum=sum+num;
                ptr=temp;
                ptr++;
        }
        return sum;
}
void getSubString(char *ptr,int i)
{
        switch(i)
        {
                case 0:
                        strcpy(ptr,"ZERO");
                        break;
                case 1:
                        strcpy(ptr,"ONE");
                        break;
                case 2:
                        strcpy(ptr,"TWO");
                        break;
                case 3:
                        strcpy(ptr,"THREE");
                        break;
                case 4:
                        strcpy(ptr,"FOUR");
                        break;
                case 5:
                        strcpy(ptr,"FIVE");
                        break;
                case 6:
                        strcpy(ptr,"SIX");
                        break;
                case 7:
                        strcpy(ptr,"SEVEN");
                        break;
                case 8:
                        strcpy(ptr,"EIGHT");
                        break;
                case 9:
                        strcpy(ptr,"NINE");
                        break;
                default:
                        break;
        }
}
answer Jun 8, 2017 by Chirag Gangdev
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