84 lines
2.0 KiB
C
84 lines
2.0 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
|
|
int * int_list_from_str(char * str);
|
|
int int_count_from_str(char * str);
|
|
|
|
int main(int argc, char *argv[]) {
|
|
if (argc != 2) {
|
|
printf("Usage: %s <string>\n", argv[0]);
|
|
return -1;
|
|
}
|
|
|
|
printf("%d ints\n", int_count_from_str(argv[1]));
|
|
/*int * list = int_list_from_str(argv[1]);
|
|
for (int i=0; i<int_count_from_str(argv[1]); i++) {
|
|
printf("%d ", list[i]);
|
|
}*/
|
|
|
|
return 0;
|
|
}
|
|
|
|
int * int_list_from_str(char * str) {
|
|
int ico = int_count_from_str(str);
|
|
int * list = malloc(sizeof(int)*ico);
|
|
|
|
int len = strlen(str);
|
|
|
|
int current_i = 0;
|
|
int is_i = 1;
|
|
int ic = 0;
|
|
for (int i = 0; i < len; i++) {
|
|
if (str[i] == ' ') {
|
|
if ((i+1 < len && str[i+1] != ' ') || (i+1)==len) {
|
|
list[ic] = current_i;
|
|
ic++;
|
|
}
|
|
is_i = 0;
|
|
current_i = 0;
|
|
} else if (isdigit(str[i])) {
|
|
if (is_i) {
|
|
current_i *= 10;
|
|
} else {
|
|
is_i = 1;
|
|
}
|
|
current_i += (str[i] - '0');
|
|
} else if (str[i]=='-' && current_i > 0) {
|
|
current_i *= -1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
return list;
|
|
}
|
|
|
|
int int_count_from_str(char * str) {
|
|
int ic = 0;
|
|
int current_i = 0;
|
|
int is_i = 1;
|
|
|
|
int len = strlen(str);
|
|
for (int i = 0; i < len; i++) {
|
|
printf("str[%d]: %c\n", i, str[i]);
|
|
if (str[i] == ' ') {
|
|
if ((i+1 < len && str[i+1] != ' ') || (i+1)==len) ic++;
|
|
is_i = 0;
|
|
current_i = 0;
|
|
} else if (isdigit(str[i])) {
|
|
if (is_i) {
|
|
current_i *= 10;
|
|
} else {
|
|
is_i = 1;
|
|
}
|
|
current_i += (str[i] - '0');
|
|
} else if (str[i]=='-' && current_i > 0) {
|
|
current_i *= -1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
return ic;
|
|
}
|