View Compilation Error

0_0_16122182_3035.cpp: In function 'int main()':
0_0_16122182_3035.cpp:48:22: error: 'strcmp' was not declared in this scope
    if(!strcmp(s,"End")) break;
                      ^
0_0_16122182_3035.cpp:50:22: error: 'strcmp' was not declared in this scope
    if(!strcmp(s,"Add")) update(x,y,1);
                      ^