oj.uz

Submission #386863

# Submission time Handle Problem Language Result Execution time Memory
386863 2021-04-07T14:06:14 Z vanic Gift (IZhO18_nicegift) C++14
0 / 100
 491 ms 79848 KB 
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <set>
#include <cassert>
 
using namespace std;
typedef long long ll;
 
const int maxn=1e6+5;
 
ll a[maxn];
ll sum;
pair < ll, int > v[maxn*3];
set < int > cur;
  
int main(){
	int n, k;
	scanf("%d%d", &n, &k);
	for(int i=0; i<n; ++i){
		scanf("%lld", a+i);
		sum+=a[i];
	}
	if(sum%k){
		printf("-1\n");
		return 0;
	}
	sum/=k;
	for(int i=0; i<n; ++i){
		if(a[i]>sum){
			printf("-1\n");
			return 0;
		}
	}
	int pos=0;
	int iduc;
	int br=0;
	for(int i=0; i<n; ++i){
		iduc=pos+a[i];
		if(iduc>sum){
			v[br]={pos, i+1};
			++br;
			iduc-=sum;
			pos=0;
		}
		v[br]={pos, i+1};
		++br;
		if(iduc!=sum){
			v[br]={iduc, -i-1};
			++br;
		}
		else{
			iduc=0;
		}
		pos=iduc;
	}
	v[br]={sum, 0};
	++br;
	sort(v, v+br);
	int sol=0;
	for(int i=0; i<br-1; ++i){
		if(v[i].first!=v[i+1].first){
			++sol;
		}
	}
	printf("%d\n", sol);
	assert(0);
	for(int i=0; i<br-1; ++i){
		if(v[i].second>0){
			cur.insert(v[i].second);
		}
		else{
			cur.erase(-v[i].second);
		}
		if(v[i].first==v[i+1].first){
			continue;
		}
		printf("%lld ", v[i+1].first-v[i].first);
		for(int x : cur){
			printf("%d ", x);
		}
		printf("\n");
	}
	return 0;
}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:19:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |  scanf("%d%d", &n, &k);
      |  ~~~~~^~~~~~~~~~~~~~~~
nicegift.cpp:21:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |   scanf("%lld", a+i);
      |   ~~~~~^~~~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 492 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 492 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 492 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Runtime error 491 ms 79848 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Runtime error 4 ms 492 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -