Submission

Status:

[PPPPPPPP]

Score: 100

User: Jokul

Problemset: สตริงซ้ำซ้ำ

Language: c

Time: 0.001 second

Submitted On: 2025-03-04 15:06:36

#include <stdio.h>
#include <string.h>

int main() {
    char s1[20], s2[20];
    int c[256] = {0}; // Array to keep track of character occurrences

    // Read two strings
    scanf("%s %s", s1, s2);

    // Count occurrences of characters in the first string
    for (int i = 0; s1[i] != '\0'; i++) {
        c[(unsigned char)s1[i]]++;
    }

    // Check for characters in the second string
    for (int i = 0; s2[i] != '\0'; i++) {
        if (c[(unsigned char)s2[i]] > 0) {
            printf("%c", s2[i]);
            c[(unsigned char)s2[i]] = 0; // Set to 0 to avoid printing again
        }
    }

    printf("\n"); // Print a newline at the end
    return 0;
}