View Compilation Error

0_0_18797900_25414.cpp: In function 'int main(int, char**)':
0_0_18797900_25414.cpp:14:23: error: 'strlen' was not declared in this scope
   for(j=0;j<strlen(str);j++)
                       ^
0_0_18797900_25414.cpp:19:25: error: expected primary-expression at end of input
     printf("%c",str[j]+1%
                         ^
0_0_18797900_25414.cpp:19:25: error: expected '}' at end of input
0_0_18797900_25414.cpp:19:25: error: expected '}' at end of input
0_0_18797900_25414.cpp:19:25: error: expected '}' at end of input