/*ID: qq104801LANG: C++TASK: fracdec*/#include <iostream>#include <fstream>#include <cstring>#include <vector>#include <list>#include <set>#include <queue>#include <cstdio>#include <algorithm>#include <cmath>using namespace std;int n,d;int vv[111111];vector<int> ans;string ss;void ff(int i){    if(i>=10)ff(i/10);    ss+=‘0‘+i%10;}void test(){        freopen("fracdec.in","r",stdin);    freopen("fracdec.out","w",stdout);    cin>>n>>d;    ff(n/d);    n%=d;    bool b=1;    while(!vv[n])    {        vv[n]=ans.size()+1;        ans.push_back(n*10/d);        n=(n*10)%d;        if(n==0){            vv[n]=ans.size();            b=0;            break;        }    }    ss+=‘.‘;    for(int i=0;i<vv[n]-1;++i)        ss+=ans[i]+‘0‘;    if(b)ss+=‘(‘;    for(int i=vv[n]-1;i<ans.size();++i)        ss+=ans[i]+‘0‘;    if(b) ss+=‘)‘;    for(int i=0,j=0;i<ss.size();++i)    {        if(j==76)        {            puts("");            putchar(ss[i]);            j=1;            continue;        }        else        {            putchar(ss[i]);            j++;        }    }    if(ss.size()%76==0);    else puts("");  }int main () {            test();            return 0;}

USACO TrainingGrader Results     8 users onlineCHN/3 USA/5USER: cn tom [qq104801]TASK: fracdecLANG: C++Compiling...Compile: OKExecuting...   Test 1: TEST OK [0.005 secs, 3940 KB]   Test 2: TEST OK [0.003 secs, 3940 KB]   Test 3: TEST OK [0.005 secs, 3940 KB]   Test 4: TEST OK [0.008 secs, 3940 KB]   Test 5: TEST OK [0.016 secs, 3940 KB]   Test 6: TEST OK [0.003 secs, 3940 KB]   Test 7: TEST OK [0.011 secs, 3940 KB]   Test 8: TEST OK [0.019 secs, 3940 KB]   Test 9: TEST OK [0.008 secs, 3940 KB]All tests OK.YOUR PROGRAM (‘fracdec‘) WORKED FIRST TIME! That‘s fantastic -- and a rare thing. Please accept these special automated congratulations.Here are the test data inputs:------- test 1 ----22 5------- test 2 ----1 7------- test 3 ----100000 59------- test 4 ----1 100000------- test 5 ----3 3------- test 6 ----59 330------- test 7 ----100000 9817------- test 8 ----1 99991------- test 9 ----982 4885Keep up the good work!Thanks for your submission!