View Compilation Error

0_0_1200459_3702.cpp:11: error: size of array `map' is too large
0_0_1200459_3702.cpp: In function `bool toposort(int)':
0_0_1200459_3702.cpp:17: error: `map' undeclared (first use this function)
0_0_1200459_3702.cpp:17: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_1200459_3702.cpp: In function `int main()':
0_0_1200459_3702.cpp:38: error: `map' undeclared (first use this function)