UVA 105,640 Paths through the Hourglass

Paths through the Hourglass

Time Limit: 3000MS Memory Limit:0KB 64bit IO Format:%lld &%llu

SubmitStatusPracticeUVA 10564

1#include <stdio.h>2#include <string.h>3 4 intn,s;5 Long Longdp[ -][ About][550];6 inta[ About][ -];7 8 intDintXintYintm)9 {Ten     if(x>=2*n-1) One         return 0; A     intv=A[x][y]; -     if(dp[x+1][y][m-v]>0) -     { theprintf"L"); -D (x+1, y,m-v); -     } -     Else +     { -printf"R"); +D (x+1, y+1, M-v); A     } at     return 0; - } -  - intMain () - { -     inti,j,k; in      while(SCANF ("%d%d", &n,&s)! =EOF) -     { to         if(n==0&& s==0) +              Break;  -Memset (DP,0,sizeof(DP)); the          for(i=1; i<=n;i++) *         { $              for(j=i;j<=n;j++)Panax Notoginseng             { -scanf"%d",&a[i][j]); the             } +         } A          for(i=n+1; i<=2*n-1; i++) the         { +              for(j=n;j<=i;j++) -             { $scanf"%d",&a[i][j]); $             } -         } -  the          for(i=n;i<=2*n-1; i++) -         {Wuyi             intv=a[2*n-1][i]; thedp[2*n-1][i][v]=1; -         } Wu          for(i=n*2-2; i>n;i--) -         { About              for(j=n;j<=i;j++) $             { -                 intv=A[i][j]; -                  for(k=v;k<=s;k++) -                 { Adp[i][j][k]=dp[i+1][j][k-v]+dp[i+1][j+1][k-v]; +                 } the             } -         } $          for(i=n;i>=1; i--) the         { the              for(j=i;j<=n;j++) the             { the                 intv=A[i][j]; -                  for(k=v;k<=s;k++) in                 { thedp[i][j][k]=dp[i+1][j][k-v]+dp[i+1][j+1][k-v]; the                 } About             } the         } the  the         Long LongCnt=0; +          for(i=1; i<=n;i++) -         { thecnt=cnt+dp[1][i][s];Bayi         } theprintf"%lld\n", CNT); the          for(i=1; i<=n;i++) -         { -             if(dp[1][i][s]>0) the             { theprintf"%d", I-1); theD1, i,s); the                  Break; -             } the         } theprintf"\ n"); the     }94     return 0; the}

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UVA 105,640 Paths through the Hourglass