Compilare: main.cpp: In function 'bool subsir(char*, char*)': main.cpp:10:11: warning: unused variable 'm' [-Wunused-variable] int n,m,i,j=0; ^ main.cpp: In function 'int main()': main.cpp:31:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v[i].size()>max1) ~~~~~~~~~~~^~~~~ main.cpp:34:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v[i].size()==max1 && v[i]<x) ~~~~~~~~~~~^~~~~~ main.cpp:23:24: warning: unused variable 'plm' [-Wunused-variable] int p,n,i,max1=0,j,plm=1,xx; ^~~ main.cpp:23:30: warning: unused variable 'xx' [-Wunused-variable] int p,n,i,max1=0,j,plm=1,xx; ^~ main.cpp:24:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.in","r",stdin); ^ main.cpp:25:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.out","w",stdout); ^ main.cpp:26:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d ", &p, &n); ^