코영방

http://www.jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=136&sca=10d0 

#include <bits/stdc++.h>
using namespace std;
//함수3 - 형성평가6

int rec(int mul, int n){
    if(n == 0)
        return mul;
    int t = n%10;
    if( t != 0){
        mul *= t;
    }
    return rec(mul, n/10);
}
int main() {
    int a,b,c;
    cin >> a >> b >> c;
    int n = a * b * c;

    printf("%d ",rec(1, n));

    return 0;
}

http://www.jungol.co.kr/bbs/board.php?bo_table=pbank&wr_id=245&sca=10f0

//문자열 2 : 자가진단 7
#include <bits/stdc++.h>
using namespace std;

int main()
{
    char in[100];
    gets(in);

    if(strchr(in, 'c') != 0)   printf("YES ");
    else    printf("NO ");

    if(strstr(in, "ab") != NULL)   printf("YES ");
    else    printf("NO ");
}

//문자열 2 : 자가진단 7
#include <bits/stdc++.h>
using namespace std;

int main()
{
    char in[100];
    int flag = 0, flag_2 = 0;

    gets(in);
    for(int i = 0; i < strlen(in); i++){
        if(in[i] == 'c'){
            flag = 1;
        }

        else if(in[i] == 'a'){
            if(in[i+1] == 'b'){
                flag_2 = 1;
            }
        }
    }
    if(flag == 1)   printf("YES ");
    else    printf("NO ");

    if(flag_2 == 1)   printf("YES ");
    else    printf("NO ");
}