0_0_19416523_15681.cpp: In function 'void spfa()':
0_0_19416523_15681.cpp:50:12: error: request for member 'second' in 'dis', which is of non-class type 'std::pair<int, int> [200100]'
#define se second
^
0_0_19416523_15681.cpp:103:46: note: in expansion of macro 'se'
pii tmp(dis[u].fi + cost[i], dis.se);
^
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