Compilare: user.cpp: In function ‘int main()’: user.cpp:42: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:47: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:49: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:54: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:67: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:72: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:74: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:79: warning: format ‘%c’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp:7: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:8: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:9: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:11: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result