View Compilation Error

0_0_3783921_8738.cpp: In function `long long int distance(long long int)':
0_0_3783921_8738.cpp:21: error: `return0' undeclared (first use this function)
0_0_3783921_8738.cpp:21: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3783921_8738.cpp: In function `void Floyd()':
0_0_3783921_8738.cpp:27: error: `k' undeclared (first use this function)
0_0_3783921_8738.cpp:27: error: `FF' undeclared (first use this function)
0_0_3783921_8738.cpp:27: error: expected `;' before '{' token
0_0_3783921_8738.cpp: In function `int main()':
0_0_3783921_8738.cpp:50: error: `h' undeclared (first use this function)
0_0_3783921_8738.cpp:50: error: `FFE' undeclared (first use this function)
0_0_3783921_8738.cpp:50: error: expected `;' before '{' token