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View Compilation Error

0_0_6597715_12572.cpp: In function `void get_spfa()':
0_0_6597715_12572.cpp:46: error: `t' undeclared (first use this function)
0_0_6597715_12572.cpp:46: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6597715_12572.cpp:49: error: `s' undeclared (first use this function)
0_0_6597715_12572.cpp:50: error: `que' undeclared (first use this function)
0_0_6597715_12572.cpp:59: error: `j' undeclared (first use this function)
0_0_6597715_12572.cpp:60: error: name lookup of `i' changed for new ISO `for' scoping
0_0_6597715_12572.cpp:46: error:   using obsolete binding at `i'
0_0_6597715_12572.cpp:69: error: `w' undeclared (first use this function)
0_0_6597715_12572.cpp:73: error: `ans' undeclared (first use this function)
0_0_6597715_12572.cpp: In function `void add(int, int, int, int)':
0_0_6597715_12572.cpp:82: error: no `operator++(int)' declared for postfix `++', trying prefix operator instead
0_0_6597715_12572.cpp:82: error: no match for 'operator++' in '++en'
0_0_6597715_12572.cpp:83: error: no match for 'operator[]' in 'e[en]'
0_0_6597715_12572.cpp:84: error: no match for 'operator[]' in 'e[en]'
0_0_6597715_12572.cpp:85: error: `ne' undeclared (first use this function)
0_0_6597715_12572.cpp:86: error: no match for 'operator[]' in 'e[en]'
0_0_6597715_12572.cpp:87: error: no match for 'operator[]' in 'e[en]'
0_0_6597715_12572.cpp: In function `int main()':
0_0_6597715_12572.cpp:101: error: no match for 'operator=' in 'en = 1'
0_0_6597715_12572.cpp:28: note: candidates are: node& node::operator=(const node&)
0_0_6597715_12572.cpp:124: error: void value not ignored as it ought to be


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