View Compilation Error

0_0_17388519_23599.cpp:24:20: error: stray '\263' in program
                    dp[0][j] = 0;     初始化
                    ^
0_0_17388519_23599.cpp:24:20: error: stray '\365' in program
0_0_17388519_23599.cpp:24:20: error: stray '\312' in program
0_0_17388519_23599.cpp:24:20: error: stray '\274' in program
0_0_17388519_23599.cpp:24:20: error: stray '\273' in program
0_0_17388519_23599.cpp:24:20: error: stray '\257' in program
0_0_17388519_23599.cpp: In function 'int main()':
0_0_17388519_23599.cpp:19:34: error: 'strlen' was not declared in this scope
                 int lena=strlen(a);
                                  ^