0_0_16317997_25167.cpp: In function 'int main()':
0_0_16317997_25167.cpp:4:36: error: 'scanf' was not declared in this scope
while(scanf("%d %d %d",&n,&u,&d),n,u,d)
^
0_0_16317997_25167.cpp:17:24: error: 'printf' was not declared in this scope
printf("%d\n",t);
^
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