Compilare: user.cpp: In function ‘int main()’: user.cpp:10:25: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[5005]’ [-Wformat=] scanf("%d\n%s",&n,&s); ^ user.cpp:20:12: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (s[i]=='(') ^ user.cpp:23:12: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (s[i]==')') ^ user.cpp:8:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("par.in","r",stdin); ^ user.cpp:9:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("par.out","w",stdout); ^ user.cpp:10:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d\n%s",&n,&s); ^