c语言编写，20个不同的整数或者字符串，合并成一个字符串

以下是一个合并20个不同字符串的示例代码：

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

int main() {
    char str1[] = "This";
    char str2[] = "is";
    char str3[] = "a";
    char str4[] = "sample";
    char str5[] = "string";
    char str6[] = "for";
    char str7[] = "merging";
    char str8[] = "multiple";
    char str9[] = "strings";
    char str10[] = "into";
    char str11[] = "a";
    char str12[] = "single";
    char str13[] = "string";
    char str14[] = "in";
    char str15[] = "C";
    char str16[] = "language";
    char str17[] = ".";
    char str18[] = "Hope";
    char str19[] = "this";
    char str20[] = "helps!";

    char result[1000];

    strcpy(result, str1);
    strcat(result, " ");
    strcat(result, str2);
    strcat(result, " ");
    strcat(result, str3);
    strcat(result, " ");
    strcat(result, str4);
    strcat(result, " ");
    strcat(result, str5);
    strcat(result, " ");
    strcat(result, str6);
    strcat(result, " ");
    strcat(result, str7);
    strcat(result, " ");
    strcat(result, str8);
    strcat(result, " ");
    strcat(result, str9);
    strcat(result, " ");
    strcat(result, str10);
    strcat(result, " ");
    strcat(result, str11);
    strcat(result, " ");
    strcat(result, str12);
    strcat(result, " ");
    strcat(result, str13);
    strcat(result, " ");
    strcat(result, str14);
    strcat(result, " ");
    strcat(result, str15);
    strcat(result, " ");
    strcat(result, str16);
    strcat(result, " ");
    strcat(result, str17);
    strcat(result, " ");
    strcat(result, str18);
    strcat(result, " ");
    strcat(result, str19);
    strcat(result, " ");
    strcat(result, str20);

    printf("%s", result);

    return 0;
}

输出结果：

This is a sample string for merging multiple strings into a single string in C language. Hope this helps!

如果是整数，可以使用 sprintf() 函数将整数转换成字符串，然后再进行合并。