#include iostream#include iomanipusing namespace std;int main(){float f;cinf;coutfixedsetprecision(3)f;return 0;}

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#include iostream#include iomanipusing namespace std;int main(){double d;cind;coutfixedsetprecision(12)d;return 0;}

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#include iostream#include iomanipusing namespace std;int main(){char a;int b;float c;double d;cinabcd;couta" "b" ";coutfixedsetprecision(6)c" "d;return 0;}

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#include iostream#include iomanipusing namespace std;int main(){double a;cina;printf("%f\n%.5f\n%e\n%g",a,a,a,a);return 0;}

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#include iostream#include iomanipusing namespace std;int main(){char c;cinc;cout" "c"\n" " "ccc"\n" ccccc"\n" " "ccc"\n" " "c;return 0;}

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#include iostreamusing namespace std;int main(){int a,b,c;cinabc;couta*0.2+b*0.3+c*0.5;return 0;}

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#include iostreamusing namespace std;int main(){int a;short b;coutsizeof(a)" "sizeof(b);return 0;}

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#include iostreamusing namespace std;int main(){float a;double b;coutsizeof(a)" "sizeof(b);return 0;}

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#include iostreamusing namespace std;int main(){bool a;char b;coutsizeof(a)" "sizeof(b);return 0;}

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#include iostream#include iomanipusing namespace std;int main(){float f;cinf;int a=f;couta;return 0;}

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