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받는거4.c
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받는거4.c
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#include <stdio.h>
#include <string.h>
#define stod(X) (X==0? 0: X-'0')
char input[10000] = {0,};
char fir[100][100] = {0,}, sec[100] = {0,}, an[100][100] = {0,};
void reverse(char *arr, int len); // 계산하기 전 배열에 있는 수 뒤집는 함수
void reverse(char *arr, int len){
char temp;
int i;
for(i=0; i<len/2; i++){
temp=arr[i];
arr[i]=arr[len-1-i];
arr[len-1-i]=temp;
}
}
void plus(int n);
void plus(int n)
{
int i, up = 0;
int len;
char a[100][100] = {0,};
//a[n][100] = fir[n][100];
//a[n+1][100] = fir[n+1][100];
if( strlen(fir[n]) > strlen(fir[n+1]) )
len = strlen(fir[n]);
else len = strlen(fir[n+1]);
reverse(fir[n], strlen(fir[n]));
reverse(fir[n+1], strlen(fir[n+1]));
for(i=0; i<=len; i++){
an[n][i] = (stod(fir[n][i]) + stod(fir[n+1][i]) + up ) % 10 + '0';
if((stod(fir[n][i]) + stod(fir[n+1][i]) + up) > 9)
up=1;
else
up=0;
an[n][len+1] = '\0';
}
if(an[0][len] == '0') an[0][len] = 0;
reverse(an[0], strlen(an[0]));
}
int main()
{
int i, j, k, m;
int s = 0;
printf("수를 입력하세요 : ");
gets(input);
printf("input:%s\n", input);
for(i=0, j=0, k=0, m=0; input[i] != '\0'; i++){
if((input[i] >= '0')&&(input[i] <= '9')||(input[i] == '.')){
fir[j][k] = input[i];
k++;
if((input[i+1] < '0')||(input[i+1] > '9')){
fir[j][k] = '\0';
j++;
k = 0;
}
}
else if(input[i] != ' '){
sec[m] = input[i];
m++;
}
}
sec[m] = '\0';
if (sec[s] == '+') plus(s);
printf("an : %s\n\n\n", an[0]);
return 0;
}