View Compilation Error

0_0_38410424_1884.cpp:85:9: error: unable to find numeric literal operator 'operator""y5'
 int vis[10007y5][1024];
         ^
0_0_38410424_1884.cpp:85:9: note: use -std=gnu++11 or -fext-numeric-literals to enable more built-in suffixes
0_0_38410424_1884.cpp: In function 'void bfs()':
0_0_38410424_1884.cpp:89:5: error: 'vis' was not declared in this scope
     vis[0][0] = 1;
     ^
0_0_38410424_1884.cpp: In function 'int main()':
0_0_38410424_1884.cpp:125:13: error: 'vis' was not declared in this scope
             vis[i][j] = 0;
             ^