Eroare de compilare: main.cpp: In function 'int main()': main.cpp:21:14: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] 21 | c1[k]=NULL; | ^~~~ main.cpp:22:8: error: 'strrev' was not declared in this scope 22 | strrev(c1); | ^~~~~~ main.cpp:23:8: error: 'strcat' was not declared in this scope 23 | strcat(c,c1); | ^~~~~~ main.cpp:2:1: note: 'strcat' is defined in header '<cstring>'; did you forget to '#include <cstring>'? 1 | #include <fstream> +++ |+#include <cstring> 2 | main.cpp:25:10: error: 'strstr' was not declared in this scope 25 | cout<<strstr(c,s)-c+strlen(s); | ^~~~~~ main.cpp:25:10: note: 'strstr' is defined in header '<cstring>'; did you forget to '#include <cstring>'? main.cpp:25:24: error: 'strlen' was not declared in this scope 25 | cout<<strstr(c,s)-c+strlen(s); | ^~~~~~ main.cpp:25:24: note: 'strlen' is defined in header '<cstring>'; did you forget to '#include <cstring>'? Non zero exit status: 1