0_0_31862253_13870.cpp: In function 'int main()': 0_0_31862253_13870.cpp:10:33: error: 'strlen' was not declared in this scope for(int i=0;i<strlen(str);i++) ^ 0_0_31862253_13870.cpp:19:19: error: 'sort' was not declared in this scope sort(a,a+j); ^