Submission #288087

#	Time	Username	Problem	Language	Result	Execution time	Memory
288087		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[110], cnt[110], r[110];

void put_vert(int x){ans.eb(1, x);}
void put_hori(int x){ans.eb(2, x);}

int main(){
    scanf("%d %d", &n, &k);
    for(int i=0; i<n; i++){
        scanf("%d", &arr[i]);
        cnt[i%k]+=arr[i];
        cnt[i%k]%=k;
    }
    for(int i=0; i<n%k; 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=1; i<n; i++){
        while(arr[i]<arr[i-1]){
            arr[i]+=k;
            put_vert(i);
        }
    }
    for(int i=0; i<n-1; i++){
		for(int j=arr[i]; j<arr[i+1]; j++){
			for(int l=i-k+1; l>=0; l-=k)put_hori(l);
			if(i%k!=k-1)r[i%k]--;
		}
	}
	for(int i=k-3; i>=0; i--)r[i]+=r[i+1];
	for(int i=0; i<n; i++){
		while(r[i]<0){
			put_vert(i);
			r[i]+=k;
		}
	}
	if(n%k>=1&&r[0]<r[k-1]){
		for(int i=0; i<n%k; i++){
            put_vert(i);
            r[i]+=k;
		}
	}
	if(n%k>=1){
		for(int i=n-k; i>=0; i-=k){
			for(int j=0; j<r[0]-r[k-1]; j++)put_hori(i);
		}
	}
    printf("%d\n", ans.size());
    for(auto i:ans)printf("%d %d\n", i.F, i.S+1);
}

Compilation message (stderr)

joiris.cpp: In function 'int main()':
joiris.cpp:68:14: 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=]
   68 |     printf("%d\n", ans.size());
      |             ~^     ~~~~~~~~~~
      |              |             |
      |              int           std::vector<std::pair<int, int> >::size_type {aka long unsigned int}
      |             %ld
joiris.cpp:26:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |     scanf("%d %d", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~
joiris.cpp:28:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   28 |         scanf("%d", &arr[i]);
      |         ~~~~~^~~~~~~~~~~~~~~

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