0_0_18413234_11845.cpp: In function 'int cmp1(stu, stu)':
0_0_18413234_11845.cpp:13:29: error: 'strcmp' was not declared in this scope
return strcmp(a.node,b.node)<0;
^
0_0_18413234_11845.cpp: In function 'int cmp2(stu, stu)':
0_0_18413234_11845.cpp:17:26: error: 'strcmp' was not declared in this scope
if(!strcmp(a.name,b.name))
^
0_0_18413234_11845.cpp: In function 'int cmp3(stu, stu)':
0_0_18413234_11845.cpp:24:29: error: 'strcmp' was not declared in this scope
return strcmp(a.node,b.node)<0;
^
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