Eroare de compilare: main.cpp: In function 'int main()': main.cpp:8:29: error: 'stdon' was not declared in this scope freopen("chei.in", "r", stdon); ^~~~~ main.cpp:9:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("chei.out", "w", stdout); ^ main.cpp:10:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%s", s); ^ Non zero exit status: 1