0_0_21685932_3650.cpp:21:9: error: 'pair' does not name a type
typedef pair<int,int> P;
^
0_0_21685932_3650.cpp: In function 'int min_cost_flow(int, int, int)':
0_0_21685932_3650.cpp:59:24: error: 'P' was not declared in this scope
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:34: error: the value of 'P' is not usable in a constant expression
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:24: note: 'P' was not declared 'constexpr'
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:35: error: type/value mismatch at argument 1 in template parameter list for 'template<class _Tp, class _Alloc> class std::vector'
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:35: error: expected a type, got 'P'
0_0_21685932_3650.cpp:59:35: error: template argument 2 is invalid
0_0_21685932_3650.cpp:59:46: error: the value of 'P' is not usable in a constant expression
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:24: note: 'P' was not declared 'constexpr'
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:47: error: type/value mismatch at argument 1 in template parameter list for 'template<class _Tp> struct std::greater'
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:47: error: expected a type, got 'P'
0_0_21685932_3650.cpp:59:49: error: template argument 1 is invalid
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:59:49: error: template argument 2 is invalid
0_0_21685932_3650.cpp:59:49: error: template argument 3 is invalid
0_0_21685932_3650.cpp:59:54: error: invalid type in declaration before ';' token
priority_queue<P, vector<P>, greater<P> > que;
^
0_0_21685932_3650.cpp:62:13: error: request for member 'push' in 'que', which is of non-class type 'int'
que.push(P(0,s));
^
0_0_21685932_3650.cpp:63:20: error: request for member 'empty' in 'que', which is of non-class type 'int'
while(!que.empty()){
^
0_0_21685932_3650.cpp:64:15: error: expected ';' before 'p'
P p = que.top(); que.pop();
^
0_0_21685932_3650.cpp:64:34: error: request for member 'pop' in 'que', which is of non-class type 'int'
P p = que.top(); que.pop();
^
0_0_21685932_3650.cpp:65:21: error: 'p' was not declared in this scope
int v = p.second;
^
0_0_21685932_3650.cpp:73:25: error: request for member 'push' in 'que', which is of non-class type 'int'
que.push(P(dist[e.to], e.to));
^
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