Compilare: user.cpp: In function ‘void pune(int, int)’: user.cpp:31:9: warning: unused variable ‘sz’ [-Wunused-variable] int sz=lst[x].size(); ^ user.cpp: In function ‘int main()’: user.cpp:56:43: warning: format ‘%s’ expects argument of type ‘char*’, but argument 4 has type ‘char (*)[5]’ [-Wformat=] scanf("%d%d%s",&x,&y,&vsir[++isir]); ^ user.cpp:69:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (ivec=0;ivec<lst[nodcrt].size();++ivec) ^ user.cpp:50:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("ninjago.in","r",stdin); ^ user.cpp:51:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("ninjago.out","w",stdout); ^ user.cpp:52:36: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d",&ty,&nnod,&nmuc); ^ user.cpp:56:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%s",&x,&y,&vsir[++isir]); ^