Submission #288090

#	Time	Username	Problem	Language	Result	Execution time	Memory
288090		mhy908	JOIRIS (JOI16_joiris)	C++14	100 / 100	1 ms	416 KiB

joiris

#include <bits/stdc++.h>
#define eb emplace_back
#define mp make_pair
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define svec(x) sort(x.begin(), x.end())
#define press(x) x.erase(unique(x.begin(), x.end()), x.end())
using namespace std;
typedef long long LL;
typedef pair<int, int> pii;
typedef pair<LL, LL> pll;
typedef pair<int, LL> pil;
typedef pair<LL, int> pli;
const LL llinf=2e18;
const int inf=1e9;
 
vector<pii> ans;
int n, k;
int arr[60];
 
void put_vert(int x){ans.eb(1, x);}
void put_hori(int x){ans.eb(2, x);}
void erase_lin(){
    int ernum=*min_element(arr+1, arr+n+1);
    for(int i=1; i<=n; i++)arr[i]-=ernum;
}
 
int cnt[60];
 
int main(){
    scanf("%d %d", &n, &k);
    for(int i=1; i<=n; i++){
        scanf("%d", &arr[i]);
        cnt[(i-1)%k]+=arr[i];
        cnt[(i-1)%k]%=k;
    }
    for(int i=0; i<=(n%k)-1; i++){
        if(cnt[i]!=cnt[0])return !printf("-1");
    }
    for(int i=n%k; i<k; i++){
        if(cnt[i]!=cnt[k-1])return !printf("-1");
    }
    for(int i=2; i<=n; i++){
        while(arr[i]<arr[i-1]){
            arr[i]+=k;
            put_vert(i);
        }
    }
    for(int i=1; i<=arr[n]; i++){
        int l;
        for(int j=1; j<=n; j++){
            if(arr[j]>=i){
                l=j-1;
                break;
            }
        }
        while(1){
            if(l-k+1<=0)break;
            put_hori(l-k+1);
            for(int j=l-k+1; j<=l; j++)arr[j]++;
            l-=k;
        }
    }
    for(int i=1; i<=k; i++){
        for(int j=1; j<i; j++){
            while(arr[j]<arr[n]){
                arr[j]+=k;
                put_vert(j);
            }
        }
        erase_lin();
    }
    int mx=0;
    for(int i=n%k+1; i<k; i++){
        mx=max(mx, arr[i]);
    }
    for(int i=n%k+1; i<=n; i++){
        while(1){
            if(arr[i]==mx)break;
            arr[i]+=k;
            put_vert(i);
        }
    }
    erase_lin();
    mx=0;
    for(int i=1; i<=n%k; i++){
        mx=max(mx, arr[i]);
    }
    for(int i=1; i<=n%k; i++){
        while(1){
            if(arr[i]==mx)break;
            arr[i]+=k;
            put_vert(i);
        }
    }
    for(int i=1; i<=arr[1]; i++){
        for(int j=n%k+1; j<=n; j+=k){
            put_hori(j);
        }
    }
    printf("%d\n", ans.size());
    for(auto i:ans)printf("%d %d\n", i.F, i.S);
}

Compilation message (stderr)

joiris.cpp: In function 'int main()':
joiris.cpp:102:14: 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=]
  102 |     printf("%d\n", ans.size());
      |             ~^     ~~~~~~~~~~
      |              |             |
      |              int           std::vector<std::pair<int, int> >::size_type {aka long unsigned int}
      |             %ld
joiris.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   32 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
joiris.cpp:34:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   34 |         scanf("%d", &arr[i]);
      |         ~~~~~^~~~~~~~~~~~~~~
joiris.cpp:59:17: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized]
   59 |             if(l-k+1<=0)break;
      |                ~^~

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