cai.cpp: In function 'int main()': cai.cpp:45: warning: format '%s' expects type 'char*', but argument 2 has type 'char (*)[55]' cai.cpp:45: warning: format '%s' expects type 'char*', but argument 3 has type 'char (*)[55]' cai.cpp:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result cai.cpp:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result cai.cpp:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result cai.cpp:45: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result