#include<stdio.h> #include<string.h> int main() { char str[100]; gets_s(str,100); int n; n = strlen(str); for (; n > 0; n--) { printf("%c", str[n - 1]); } } /* Main.c: In function 'main': Main.c:7:2: warning: implicit declaration of function 'gets_s' [-Wimplicit-function-declaration] gets_s(str,100); ^ /tmp/ccxUdziV.o: In function `main': Main.c:(.text+0x1a): undefined reference to `gets_s' collect2: error: ld returned 1 exit status */ |
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