View Compilation Error

0_0_6844611_19095.cpp:65: error: redefinition of `int d[4][2]'
0_0_6844611_19095.cpp:7: error: `int d[4][2]' previously defined here
0_0_6844611_19095.cpp:66: error: redefinition of `int mat[100][100]'
0_0_6844611_19095.cpp:8: error: `int mat[100][100]' previously declared here
0_0_6844611_19095.cpp:67: error: redefinition of `int N'
0_0_6844611_19095.cpp:9: error: `int N' previously declared here
0_0_6844611_19095.cpp: In function `int check(int, int, int, int)':
0_0_6844611_19095.cpp:70: error: redefinition of `int check(int, int, int, int)'
0_0_6844611_19095.cpp:12: error: `int check(int, int, int, int)' previously defined here
0_0_6844611_19095.cpp: In function `int main()':
0_0_6844611_19095.cpp:82: error: redefinition of `int main()'
0_0_6844611_19095.cpp:24: error: `int main()' previously defined here