Compilare: user.cpp: In function ‘int main()’: user.cpp:12:14: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(c>=65 && c<=90 || c>=97 && c<=122) ^ user.cpp:15:15: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(c==' ' && ok==1 || c=='-' && ok==1 || c=='\n'&& ok==1) ^ user.cpp:15:53: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(c==' ' && ok==1 || c=='-' && ok==1 || c=='\n'&& ok==1) ^ user.cpp:7:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("text.in","r",stdin); ^