View Compilation Error

0_0_16040694_19738.cpp: In function 'void getDis(node**, int, int*)':
0_0_16040694_19738.cpp:47:35: error: 'memset' was not declared in this scope
  memset(solved,0,1020*sizeof(bool));
                                   ^
0_0_16040694_19738.cpp: In function 'int main()':
0_0_16040694_19738.cpp:78:7: error: 'i' was not declared in this scope
   for(i=0;i<s;i++){
       ^
0_0_16040694_19738.cpp:84:7: error: 'i' was not declared in this scope
   for(i=0;i<d;i++){
       ^