oj.uz

Submission #588637

# Submission time Handle Problem Language Result Execution time Memory
588637 2022-07-03T18:27:45 Z peuch Uplifting Excursion (BOI22_vault) C++17
0 / 100
 0 ms 212 KB 
#include<bits/stdc++.h>
using namespace std;

const int MAXN = 610;
const long long INF = 1e18;

int m;
long long l;

long long aux[MAXN];
long long *v = aux + 300;

int main(){
	
	scanf("%d %lld", &m, &l);
	for(int i = -m; i <= m; i++)
		scanf("%lld", &v[i]);
		
	long long sum = 0;
	long long cnt = 0;
	for(int i = 1; i <= m; i++){
		if(sum + v[i] * i <= l){
			sum += v[i] * i;
			cnt += v[i];
			continue;
		}
		cnt += ((l - sum) / i + 1);
		sum += i * ((l - sum) / i + 1);
	}
	if(sum < l){
		printf("impossible\n");
		return 0;
	}
	vector<long long> dp(sum - l + 1, INF);
	dp[0] = 0;
	vector<int> moedas;
	for(int i = 1; i <= m; i++){
		for(int j = 0; j < min(300LL, v[i]); j++)
			moedas.push_back(i);
	}
	
	for(int i = 0; i < moedas.size(); i++){
		for(int j = moedas[i]; j < dp.size(); j++){
			dp[j] = min(dp[j], dp[j - moedas[i]] + 1);
		}
	}
	
	if(dp.back() == INF) printf("impossible\n");
	else printf("%lld\n", v[0] + cnt - dp.back());
}

Compilation message

vault.cpp: In function 'int main()':
vault.cpp:42:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |  for(int i = 0; i < moedas.size(); i++){
      |                 ~~^~~~~~~~~~~~~~~
vault.cpp:43:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |   for(int j = moedas[i]; j < dp.size(); j++){
      |                          ~~^~~~~~~~~~~
vault.cpp:15:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |  scanf("%d %lld", &m, &l);
      |  ~~~~~^~~~~~~~~~~~~~~~~~~
vault.cpp:17:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   17 |   scanf("%lld", &v[i]);
      |   ~~~~~^~~~~~~~~~~~~~~

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6-1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6-2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -