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#include <stdio.h>
#include <stdlib.h>
#define ungetchar(ch) ungetc(ch, stdin)
int getnumber(char* input, int* i) {
int ch, num = 0, neg = 0;
if(input[(*i)++] == '-') {
ch = input[(*i)++];
if(ch < '0' || ch > '9')
return 0;
else
neg = 1;
}
(*i)--;
while((ch = input[(*i)++]) >= '0' && ch <= '9')
num = (num * 10) + (ch - 48);
(*i)--;
if(neg)
return -num;
else
return num;
}
int sumnumbers(char* input) {
int tot = 0, ch, i = 0;
while((ch = input[i++]) != '\0') {
if((ch >= '0' && ch <= '9') || ch == '-') {
i--;
tot += getnumber(input, &i);
}
}
return tot;
}
int sumnonred(char* input) {
return 0;
}
char* readtheinput() {
char *theinput, ch;
int i = 0, max = 1024;
theinput = (char*) malloc(max * sizeof(char));
while((ch = getchar()) != EOF) {
theinput[i++] = ch;
if(i == max) {
max += 1024;
theinput = (char*) realloc((void*) theinput, max * sizeof(char));
}
}
theinput[i] = '\0';
return theinput;
}
int main() {
char* theinput;
theinput = readtheinput();
printf("Sum of all numbers: %d\n", sumnumbers(theinput));
printf("Sum of all non-red numbers: %d\n", sumnonred(theinput));
free(theinput);
return 0;
}
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