Compilare: user.cpp: In function ‘int main()’: user.cpp:100:27: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[1010]’ [-Wformat=] scanf("%s\n",&v[i]); ^ user.cpp:120:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(x=0; x<w.size(); ++x) ^ user.cpp:143:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(x=0; x<w.size(); ++x) ^ user.cpp:95:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mz.in","r",stdin); ^ user.cpp:96:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("mz.out","w",stdout); ^ user.cpp:97:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:100:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s\n",&v[i]); ^