Compilare: user.cpp: In function ‘int main()’: user.cpp:26:38: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (k == n - 1 && s2[i - 1] == ' ' && ((j == n1) || s2[j] == ' ') || (i == 0 && s2[j] == ' ')) ^ user.cpp:14:19: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s1, 100, f); ^ user.cpp:15:19: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(s2, 100, f); ^