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大牛们帮下哪错了!!或者给组测试数据#include<iostream> using namespace std; main() { int prime[168]={2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997}; double ab; int wild,len,m,a,b,i,k,max; while(cin>>m>>a>>b) { if(m==a&&a==b&&b==0) break; ab=(double)a/b; wild=(int)(m*b/(a+b)); for(i=167;i>=0;i--) { if(prime[i]<=wild+1) break; } max=0; for(;i>=0;i--) { if(prime[i]*prime[i]<=max) break; for(k=i;k>=0;k--) { if((double)prime[k]/prime[i]<ab) break; if(prime[i]*prime[k]<=m&&(double)prime[k]/prime[i]>=ab) { if(prime[i]*prime[k]>max) { max=prime[i]*prime[k]; wild=prime[i]; len=prime[k]; } break; } } } cout<<len<<" "<<wild<<endl; } } Followed by: Post your reply here: |
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