Submission #362505

#	Time	Username	Problem	Language	Result	Execution time	Memory
362505		denkendoemeer	JOIRIS (JOI16_joiris)	C++14	100 / 100	1 ms	384 KiB

joiris

#include<bits/stdc++.h>
using namespace std;
int d[105],r[105],v[105];
vector<pair<int,int>>ans;
int main()
{
    //freopen(".in","r",stdin);
    //freopen(".out","w",stdout);
    int n,k,i,j,e;
    scanf("%d%d",&n,&k);
    for(i=0;i<n;i++){
        scanf("%d",&v[i]);
        d[i%k]+=v[i];
    }
    for(i=0;i<n%k;i++){
        if (d[i]%k!=d[0]%k){
            printf("-1\n");
            return 0;
        }
    }
    for(i=n%k;i<k;i++){
        if (d[i]%k!=d[k-1]%k){
            printf("-1\n");
            return 0;
        }
    }
    for(i=1;i<n;i++){
        while(1){
            if (v[i-1]>v[i]){
                ans.push_back(make_pair(1,i));
                v[i]+=k;
            }
            else
                break;
        }
    }
    for(i=0;i<n-1;i++)
        for(j=v[i];j<v[i+1];j++){
            for(e=i-k+1;e>=0;e=e-k)
                ans.push_back(make_pair(2,e));
            if (i%k!=k-1)
                r[i%k]--;
        }
    for(i=k-3;i>=0;i--)
        r[i]=r[i]+r[i+1];
    for(i=0;i<n;i++){
        while(1){
            if (r[i]>=0)
                break;
            ans.push_back(make_pair(1,i));
            r[i]+=k;
        }
    }
    if (n%k>=1 && r[0]<r[k-1]){
        for(i=0;i<n%k;i++)
            ans.push_back(make_pair(1,i)),r[i]+=k;
    }
    if (n%k){
        for(i=n-k;i>=0;i=i-k)
            for(j=0;j<r[0]-r[k-1];j++)
                ans.push_back(make_pair(2,i));
    }
    printf("%d\n",ans.size());
    for(i=0;i<ans.size();i++)
        printf("%d %d\n",ans[i].first,ans[i].second+1);
return 0;
}

Compilation message (stderr)

joiris.cpp: In function 'int main()':
joiris.cpp:63:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wformat=]
   63 |     printf("%d\n",ans.size());
      |             ~^    ~~~~~~~~~~
      |              |            |
      |              int          std::vector<std::pair<int, int> >::size_type {aka long unsigned int}
      |             %ld
joiris.cpp:64:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   64 |     for(i=0;i<ans.size();i++)
      |             ~^~~~~~~~~~~
joiris.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   10 |     scanf("%d%d",&n,&k);
      |     ~~~~~^~~~~~~~~~~~~~
joiris.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   12 |         scanf("%d",&v[i]);
      |         ~~~~~^~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 55 / 55