postmen.cpp: In function 'void euler(int)':
postmen.cpp:10:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(dk[s]<g[s].size())
~~~~~^~~~~~~~~~~~
postmen.cpp: In function 'int main()':
postmen.cpp:24:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&n,&m);
~~~~~^~~~~~~~~~~~~~
postmen.cpp:28:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&t1,&t2);
~~~~~^~~~~~~~~~~~~~~~