#include iostreamusing namespace std;int main(){cout10;return 0;}
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#include iostreamusing namespace std;int main(){int x;cinx;coutx" "x*10;return 0;}
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#include iostreamusing namespace std;int main(){ cout"400.00"; return 0;}
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#include iostreamusing namespace std;int main(){cout"Hello World!";return 0;}
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#include iostream#include iomanipusing namespace std;int main(){int x,a,y,b;cinxayb;double z=1.0*(x*a-y*b)/(a-b);coutfixedsetprecision(2)z;return 0;}
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#include iostreamusing namespace std;int main(){ char c; cinc; cout" "c" "endl; cout" "ccc" "endl; coutcccccendl; return 0;}
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#include iostream#include iomanipusing namespace std;int main(){int a,b,c;cinabc;coutsetw(8)a" ";coutsetw(8)b" ";coutsetw(8)c;return 0;}
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#include iostreamusing namespace std;int main(){//ctrl+C 复制 ctrl+V 粘贴cout"Hello,World!";return 0;}
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#include iostreamusing namespace std;int main(){int a,b,c;cinabc;coutb;return 0;}
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【代码】 #include iostreamusing namespace std;int main(){ int a,b; cinab; couta+b; return 0;}
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