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Re:到底是什么错啊??有高手能告诉我吗??谢谢啊In Reply To:到底是什么错啊??有高手能告诉我吗??谢谢啊 Posted by:smilezhen at 2005-08-19 14:16:22 #include<iostream> #include<stdio.h> #include<cmath> using namespace std; int main() { int n,i,test; double R; cin>>test; for(i=1;i<=test;i++) { cin>>R>>n; printf("Scenario #%d:\n%.3f\n\n",i,R*sin(acos(-1)/n)/(1+sin(acos(-1)/n))); } return 0; } 应该是这样的!!!!!!!!!! Followed by:
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