politicaldevelopment.cpp:24:17: error: wrong number of template arguments (1, should be at least 2)
map<pair<int,int>> edge;
^~
In file included from /usr/include/c++/7/map:61:0,
from politicaldevelopment.cpp:8:
/usr/include/c++/7/bits/stl_map.h:99:11: note: provided for 'template<class _Key, class _Tp, class _Compare, class _Alloc> class std::map'
class map
^~~
politicaldevelopment.cpp: In function 'int main()':
politicaldevelopment.cpp:40:8: error: no match for 'operator[]' (operand types are 'int' and 'std::pair<int, int>')
edge[MP(i,x)]=1;
^
politicaldevelopment.cpp:65:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<g[v].size();i++)
~^~~~~~~~~~~~
politicaldevelopment.cpp:75:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<a.size();i++)
~^~~~~~~~~
politicaldevelopment.cpp:77:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<a.size();i++)
~^~~~~~~~~
politicaldevelopment.cpp:78:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0;j<a.size();j++)
~^~~~~~~~~
politicaldevelopment.cpp:80:21: error: request for member 'find' in 'edge', which is of non-class type 'int'
if(i==j || edge.find(MP(a[i],a[j]))==edge.end())
^~~~
politicaldevelopment.cpp:80:47: error: request for member 'end' in 'edge', which is of non-class type 'int'
if(i==j || edge.find(MP(a[i],a[j]))==edge.end())
^~~
politicaldevelopment.cpp:38:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&x);
~~~~~^~~~~~~~~