2022.12.28 Baekjoon1316

https://www.acmicpc.net/problem/1316

코드 #1

#include<stdio.h>

int getLength(char * array);
int compare(char * array, int length);


int main() {
    int n=0;
    int length = 0;
    int cnt = 0;
    char array[100] = {0};

    scanf("%d", &n);
    for(int i=0; i<n; i++) {
        scanf("%s", array);
        length = getLength(array);
        cnt += compare(array, length);
    }
    printf("%d", cnt);
}

int getLength(char * array) {
    int length = 0;
    while(array[length] != 0) {
        length++;
    }
    return length;
}

int comapre(char * array, int length) {
    for(int i=0; i<length; i++) {
        for(int j=i; j<length; j++) {
            if(array[i] == array[j]) {
                if(j-i > 1) {
                    return 0;
                }
            }
        }
    }
    return 1;
}

오류 메시지

prog.c: In function ‘main’:
prog.c:13:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ^~~~~~~~~~~~~~~
prog.c:15:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s", array);
         ^~~~~~~~~~~~~~~~~~
/usr/bin/ld: /home/fq5FRC/ccVeYioD.o: in function `main':
prog.c:(.text.startup+0xa4): undefined reference to `compare'
collect2: error: ld returned 1 exit status

코드 #2

#include<stdio.h>

int main(void) {
    int N = 0;
    char input_words[101];
    scanf("%d", &N);
    int count = N;
    
    for(int i=0; i<N; i++) {
    	int alphabet[26] = {0, };
    	char first = '0';
        scanf("%s", input_words);
        
        for(int j=0; input_words[j] != '\0'; j++) {

            if(first != input_words[j]) {
                first = input_words[j];
                alphabet[input_words[j] - 'a']++;
            }
            
            if(alphabet[input_words[j] - 'a'] == 2) {
                count--;
                break;
            }
        }
    }
    printf("%d", count);
    return 0;
}