checker.cpp: In function 'int main()':
checker.cpp:16:20: error: request for member 'push_back' in 'adjlist[a]', which is of non-class type 'int'
adjlist[a].push_back({b,c});
^~~~~~~~~
checker.cpp:17:20: error: request for member 'push_back' in 'adjlist[b]', which is of non-class type 'int'
adjlist[b].push_back({a,c});
^~~~~~~~~
checker.cpp:21:29: error: request for member 'size' in 'adjlist[i]', which is of non-class type 'int'
if ((int)adjlist[i].size() % 2 == 1){
^~~~
checker.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&st);
~~~~~^~~~~~~~~~
checker.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&n);
~~~~~^~~~~~~~~
checker.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&col[i]);
~~~~~^~~~~~~~~~~~~~
checker.cpp:15:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d",&a,&b,&c);
~~~~~^~~~~~~~~~~~~~~~~~~