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Submission #23661

# Submission time Handle Problem Language Result Execution time Memory
23661 2017-05-18T10:50:31 Z TAMREF Boat (APIO16_boat) C++11
0 / 100
 0 ms 2024 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MX=505;
const int mod=1000000007;
int N, A[MX], B[MX];
void input(){
    scanf("%d",&N);
    for(int i=1;i<=N;i++) scanf("%d %d",&A[i],&B[i]);
}
void task1(){
    ll D[MX]={1};
    for(int i=1,j;i<=N;i++){
        for(j=i-1;B[j]>=B[i];--j);
        D[i]=(D[i-1]+D[j])%mod;
    }
    printf("%lld\n",((D[N]-1)%mod+mod)%mod);
}
int main(){
    input();
    task1();
}

Compilation message

boat.cpp: In function 'void input()':
boat.cpp:8:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&N);
                   ^
boat.cpp:9:53: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=1;i<=N;i++) scanf("%d %d",&A[i],&B[i]);
                                                     ^

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2024 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 22.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2024 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2024 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 42.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 2024 KB Output isn't correct
2 Halted 0 ms 0 KB -