View Compilation Error

0_0_17312077_22307.cpp: In function 'bool cmp(team, team)':
0_0_17312077_22307.cpp:31:28: error: 'strcmp' was not declared in this scope
     if(strcmp(a.name,b.name)<0)
                            ^
0_0_17312077_22307.cpp: In function 'int main()':
0_0_17312077_22307.cpp:48:26: error: 'strcpy' was not declared in this scope
    strcpy(node[i].name,"");
                          ^
0_0_17312077_22307.cpp:63:29: error: 'strcpy' was not declared in this scope
     strcpy(node[len].name,t1);
                             ^
0_0_17312077_22307.cpp:91:31: error: 'strcmp' was not declared in this scope
      if(strcmp(node[i].name,t1)==0)
                               ^
0_0_17312077_22307.cpp:118:30: error: 'strcpy' was not declared in this scope
      strcpy(node[len].name,t1);
                              ^
0_0_17312077_22307.cpp:131:30: error: 'strcpy' was not declared in this scope
      strcpy(node[len].name,t2);
                              ^
0_0_17312077_22307.cpp: At global scope:
0_0_17312077_22307.cpp:152:2: error: expected unqualified-id before '<' token
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