Download 2018/round3/jammin.cpp from hackercupai/hackercup: direct link, hf CLI and curl.
- Browser
- Download file 3.22 kB
-
https://huggingface.co/datasets/hackercupai/hackercup/resolve/d3f4f72bddddfc23e507cced058ae9e309fa71bb/2018/round3/jammin.cpp
- Command line
-
hf download hf://datasets/hackercupai/hackercup@d3f4f72bddddfc23e507cced058ae9e309fa71bb/2018/round3/jammin.cpp
-
curl -L -o jammin.cpp https://huggingface.co/datasets/hackercupai/hackercup/resolve/d3f4f72bddddfc23e507cced058ae9e309fa71bb/2018/round3/jammin.cpp
3.22 kB
| // Jammin' | |
| // Solution by Jacob Plachta | |
| using namespace std; | |
| template<typename T> T Abs(T x) { return(x<0 ? -x : x); } | |
| template<typename T> T Sqr(T x) { return(x*x); } | |
| string plural(string s) { return(Sz(s) && s[Sz(s)-1]=='x' ? s+"en" : s+"s"); } | |
| const int INF = (int)1e9; | |
| const LD EPS = 1e-12; | |
| const LD PI = acos(-1.0); | |
| bool Read(int &x) | |
| { | |
| char c,r=0,n=0; | |
| x=0; | |
| for(;;) | |
| { | |
| c=GETCHAR(); | |
| if ((c<0) && (!r)) | |
| return(0); | |
| if ((c=='-') && (!r)) | |
| n=1; | |
| else | |
| if ((c>='0') && (c<='9')) | |
| x=x*10+c-'0',r=1; | |
| else | |
| if (r) | |
| break; | |
| } | |
| if (n) | |
| x=-x; | |
| return(1); | |
| } | |
| int main() | |
| { | |
| if (DEBUG) | |
| freopen("in.txt","r",stdin); | |
| // vars | |
| int T,t; | |
| int N; | |
| int i,ans,cur,numPast; | |
| bool pastReachable; | |
| static char C[LIM]; | |
| // testcase loop | |
| Read(T); | |
| Fox1(t,T) | |
| { | |
| // input | |
| scanf("%s",&C); | |
| N=strlen(C); | |
| // simulate | |
| ans=cur=numPast=pastReachable=0; | |
| Fox(i,N) | |
| if (C[i]=='*') // jammer | |
| { | |
| cur++; // pick it up | |
| if ((cur>=2) || (pastReachable)) // reclaim all past jammers | |
| { | |
| cur+=numPast; | |
| numPast=pastReachable=0; | |
| } | |
| Max(ans,cur); // new best? | |
| } | |
| else | |
| if ((C[i]=='#') && (C[i+1]!='#')) // 1 barrier | |
| { | |
| // can cross totally for free? | |
| if (cur>=2) | |
| continue; | |
| // can cross for free, but while making a past jammer unreachable? | |
| if (C[i+1]=='*') | |
| { | |
| pastReachable=0; | |
| continue; | |
| } | |
| // can cross using a jammer? | |
| if (cur) | |
| { | |
| cur--; | |
| numPast++,pastReachable=1; | |
| continue; | |
| } | |
| // can't cross | |
| break; | |
| } | |
| else | |
| if ((C[i]=='#') && (C[i+1]=='#') && (C[i+2]!='#')) // 2 barriers | |
| { | |
| // can cross by swapping out for a jammer on the other side? | |
| if ((cur) && (C[i+2]=='*')) | |
| { | |
| i+=2; | |
| continue; | |
| } | |
| // can't cross | |
| break; | |
| } | |
| else | |
| if ((C[i]=='#') && (C[i+1]=='#') && (C[i+2]=='#')) // 3+ barriers | |
| break; // can never cross | |
| // output | |
| printf("Case #%d: %d\n",t,ans); | |
| } | |
| return(0); | |
| } |