Compilare: user.cpp: In function ‘int main()’: user.cpp:16:26: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[16005]’ [-Wformat=] scanf("%s\n",&sir); ^ user.cpp:20:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<nr[i].size();j++) ~^~~~~~~~~~~~~ user.cpp:50:19: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d",mx); ^ user.cpp:10:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("base3.in","r",stdin); ^ user.cpp:11:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("base3.out","w",stdout); ^ user.cpp:16:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",&sir); ^