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Submission #548326

# Submission time Handle Problem Language Result Execution time Memory
548326 2022-04-13T04:13:34 Z krit3379 Calvinball championship (CEOI15_teams) C++17
20 / 100
 2 ms 644 KB 
#include<bits/stdc++.h>
using namespace std;
#define N 105

long long a[N],p[N][N],ma,ans=1,mod=1e9+7;

int main(){
    int n,i,j,k;
    scanf("%d",&n);
    for(i=1;i<=n;i++)scanf("%lld",&a[i]);
    for(i=1;i<=n;i++)p[0][i]=1;
    for(i=1;i<=n;i++)for(j=1;j<=n;j++)p[i][j]=(j*p[i-1][j]+p[i-1][j+1])%mod;
    for(i=1;i<=n;i++){
        ans=(ans+(a[i]-1)*p[n-i][ma])%mod;
        ma=max(ma,a[i]);
    }
    printf("%lld",ans);
    return 0;
}

Compilation message

teams.cpp: In function 'int main()':
teams.cpp:8:15: warning: unused variable 'k' [-Wunused-variable]
    8 |     int n,i,j,k;
      |               ^
teams.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
teams.cpp:10:27: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |     for(i=1;i<=n;i++)scanf("%lld",&a[i]);
      |                      ~~~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 308 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 1 ms 304 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct

Subtask #3
0 / 10.0

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

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 644 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 444 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 340 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -