View Compilation Error

0_0_26635352_26998.cpp:1:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_26635352_26998.cpp:2:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_26635352_26998.cpp:3:9: error: #include expects "FILENAME" or <FILENAME>
 #include
         ^
0_0_26635352_26998.cpp: In function 'int main()':
0_0_26635352_26998.cpp:9:18: error: 'scanf' was not declared in this scope
     scanf("%d",&t);
                  ^
0_0_26635352_26998.cpp:14:19: error: 'strlen' was not declared in this scope
         l=strlen(a);
                   ^
0_0_26635352_26998.cpp:15:17: error: expected ';' at end of input
         for(i=0;i
                 ^
0_0_26635352_26998.cpp:15:17: error: expected primary-expression at end of input
0_0_26635352_26998.cpp:15:17: error: expected ')' at end of input
0_0_26635352_26998.cpp:15:17: error: expected statement at end of input
0_0_26635352_26998.cpp:15:17: error: expected '}' at end of input
0_0_26635352_26998.cpp:15:17: error: expected '}' at end of input