Submission #245149

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
245149	2020-07-05 15:51:41	m3r8	Toll (BOI17_toll)	C++14	100 / 100	499 ms	34808 KiB

toll

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#include <stdio.h>
#define N 100100
int bst[N][17][5];
int nm[N][17][5];
int adj[N][5];
int k,n;
int bb[5];
int nxt[5];
int solve(int akt, int en){
  //printf("%d %d %d\n",akt,en,bb[en%k]);
  int mx = -1;
  if(akt == en/k)return bb[en%k];
  for(int i = 15;i>=0;i--){
    if(nm[akt*k][i][0]/k <= en/k){
      //printf("test %d %d\n",i,nm[akt*k][i][0]/k);
      for(int j1 = 0;j1<k;j1++){
        nxt[j1] = -1;
        for(int j2 = 0;j2<k;j2++){
          if(bb[j2] != -1 && bst[akt*k+j2][i][j1] != -1){
            int tmp = bb[j2] + bst[akt*k+j2][i][j1];   
            if(nxt[j1] == -1 ||nxt[j1] > tmp)nxt[j1] = tmp;
          };
        };
      };
      for(int j = 0;j<k;j++)bb[j] = nxt[j];
      return solve(nm[akt*k][i][0]/k,en);
 
 
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Compilation message (stderr)

toll.cpp: In function 'int solve(int, int)':
toll.cpp:15:7: warning: unused variable 'mx' [-Wunused-variable]
   int mx = -1;
       ^~
toll.cpp: In function 'int main()':
toll.cpp:77:13: warning: unused variable 'tmp' [-Wunused-variable]
         int tmp = calc(l,i,j);  
             ^~~
toll.cpp: In function 'int solve(int, int)':
toll.cpp:34:1: warning: control reaches end of non-void function [-Wreturn-type]
 };
 ^
toll.cpp: In function 'int main()':
toll.cpp:68:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d %d %d",&k,&n,&m,&o);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
toll.cpp:71:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d %d",&a,&b,&t);  
     ~~~~~^~~~~~~~~~~~~~~~~~~~~
toll.cpp:83:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&a,&b);
     ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 10 / 10
• Subtask 3: 8 / 8
• Subtask 4: 31 / 31
• Subtask 5: 44 / 44