View Compilation Error

0_0_14627881_7636.cpp:107:1: error: stray '\243' in program
 e3=str[2]-'0'；
 ^
0_0_14627881_7636.cpp:107:1: error: stray '\273' in program
0_0_14627881_7636.cpp: In function 'void bfs()':
0_0_14627881_7636.cpp:30:25: error: 'memset' was not declared in this scope
 memset(vis,0,sizeof(vis));
                         ^
0_0_14627881_7636.cpp: In function 'int main()':
0_0_14627881_7636.cpp:108:1: error: expected ';' before 'e4'
 e4=str[3]-'0';
 ^