oj.uz

Submission #54772

# Submission time Handle Problem Language Result Execution time Memory
54772 2018-07-05T04:49:29 Z 1등은 나의 것^^(#2059) Calvinball championship (CEOI15_teams) C++11
20 / 100
 202 ms 1040 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll N = 10005, mod = 1e6+7;

ll n, a[N], mx[N], dt[2][N];

int main()
{
	scanf("%lld",&n);
	for(ll i=1;i<=n;i++) {
		scanf("%lld",&a[i]);
		mx[i] = max(mx[i-1], a[i]);
		dt[n%2][i] = 1;
	}
	ll ans = a[n];
	for(ll i=n-1;i>=1;i--) {
		for(ll j=1;j<=i;j++) {
			dt[i%2][j] = (dt[1-i%2][j] * j + dt[1-i%2][j+1]) % mod;
		}
		for(ll j=1;j<a[i];j++) {
			ans = (ans + dt[i%2][max(mx[i-1], j)]);
		}
	}
	printf("%lld\n",ans);
}

Compilation message

teams.cpp: In function 'int main()':
teams.cpp:10:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
teams.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a[i]);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 2 ms 356 KB Output is correct
3 Correct 2 ms 560 KB Output is correct
4 Correct 2 ms 560 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 2 ms 620 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 620 KB Output is correct
2 Correct 2 ms 620 KB Output is correct
3 Correct 2 ms 640 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 640 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 640 KB Output isn't correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 640 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 644 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 644 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 202 ms 956 KB Output isn't correct

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 31 ms 956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 115 ms 1040 KB Output isn't correct
2 Halted 0 ms 0 KB -