oj.uz

Submission #827056

# Submission time Handle Problem Language Result Execution time Memory
827056 2023-08-16T08:26:15 Z 반딧불(#10373) JOIRIS (JOI16_joiris) C++17
0 / 100
 1 ms 304 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n, k;
int arr[52];

void subtask1();
void subtask2();
void subtask3();
void subtask4();

int main(){
	scanf("%d %d", &n, &k);
	for(int i=1; i<=n; i++) scanf("%d", &arr[i]);

	if(0 && k==2){
		if(n%2==0) subtask1();
		else subtask2();
		return 0;
	}
	if(n%k==0) subtask3();
	else subtask4();
}

vector<pair<int, int> > ans;

void subtask1(){
	if(accumulate(arr+1, arr+n+1, 0) % 2){
		puts("-1");
		exit(0);
	}

	for(int i=1; i<=n; i++){
		while(arr[i] < arr[i-1]){
			ans.push_back(make_pair(1, i));
			arr[i] += 2;
		}
	}

	int minV = *min_element(arr+1, arr+n+1);
	for(int i=1; i<=n; i++) arr[i] -= minV;

	for(int i=1; i<n; i++){
		int v = arr[i+1] - arr[i];
		for(int j=i-1; j>=1; j-=2) for(int c=0; c<v; c++) ans.push_back(make_pair(2, j));
		if(i%2==0) for(int j=i+1; j<=n; j++) arr[j] -= v;
		else for(int j=2; j<=i; j++) arr[j] += v;
	}

	int v = (arr[2] - arr[1]) / 2;
	for(int i=0; i<v; i++) ans.push_back(make_pair(1, 1));

	printf("%d\n", (int)ans.size());
	for(auto p: ans){
		printf("%d %d\n", p.first, p.second);
	}
}

void subtask2(){
	for(int i=1; i<=n; i++){
		while(arr[i] < arr[i-1]){
			ans.push_back(make_pair(1, i));
			arr[i] += 2;
		}
	}

	int minV = *min_element(arr+1, arr+n+1);
	for(int i=1; i<=n; i++) arr[i] -= minV;

	for(int i=1; i<n; i++){
		int v = arr[i+1] - arr[i];
		for(int j=i-1; j>=1; j-=2) for(int c=0; c<v; c++) ans.push_back(make_pair(2, j));
		if(i%2==0) for(int j=i+1; j<=n; j++) arr[j] -= v;
		else for(int j=2; j<=i; j++) arr[j] += v;
	}

	int v = (arr[2] - arr[1]) / 2;
	for(int i=0; i<v; i++) ans.push_back(make_pair(1, 1)), arr[1] += 2;

	if(arr[1] != arr[2]){
		ans.push_back(make_pair(1, 1));
		for(int i=2; i<n; i+=2) ans.push_back(make_pair(2, i));
	}

	printf("%d\n", (int)ans.size());
	for(auto p: ans){
		printf("%d %d\n", p.first, p.second);
	}
}
	
int cntMod[52];
void subtask3(){
	for(int i=1; i<=n; i++) cntMod[i%k] = (cntMod[i%k] + arr[i]) % k;
	if(*max_element(cntMod, cntMod+k) != *min_element(cntMod, cntMod+k)){
		puts("-1");
		exit(0);
	}

	for(int i=1; i<=n; i++){
		while(arr[i] < arr[i-1]){
			ans.push_back(make_pair(1, i));
			arr[i] += k;
		}
	}

	int minV = *min_element(arr+1, arr+n+1);
	for(int i=1; i<=n; i++) arr[i] -= minV;

	for(int c=1; c<=k; c++){ /// 제거한 뒤 c열에 추가함
		for(int i=c+k; i<=n; i+=k){
			int v = arr[i] - arr[i-1];
			for(int d=0; d<v; d++) for(int x=c; x<i; x+=k) ans.push_back(make_pair(2, x));
			for(int j=1; j<c; j++) arr[j] -= v;
			for(int j=i; j<=n; j++) arr[j] -= v;
		}
		while(arr[c] < arr[n]) ans.push_back(make_pair(1, c)), arr[c] += k;
		int minV = *min_element(arr+1, arr+n+1);
		for(int i=1; i<=n; i++) arr[i] -= minV;

		//printf("%d complete\n", c);
		//for(int i=1; i<=n; i++) printf("%d ", arr[i]);
		//puts("");
	}
	
	assert(*max_element(arr+1, arr+n+1) == 0);
	printf("%d\n", (int)ans.size());
	for(auto p: ans){
		printf("%d %d\n", p.first, p.second);
	}
}

void subtask4(){

}

Compilation message

joiris.cpp: In function 'int main()':
joiris.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |  scanf("%d %d", &n, &k);
      |  ~~~~~^~~~~~~~~~~~~~~~~
joiris.cpp:17:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |  for(int i=1; i<=n; i++) scanf("%d", &arr[i]);
      |                          ~~~~~^~~~~~~~~~~~~~~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Incorrect 0 ms 296 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Unexpected end of file - int32 expected
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Incorrect 0 ms 296 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 296 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Incorrect 0 ms 296 KB Output isn't correct
12 Halted 0 ms 0 KB -