Submission #1263831

#	Time	Username	Problem	Language	Result	Execution time	Memory
1263831		vtnoo	Triple Peaks (IOI25_triples)	C++20	11 / 100	12 ms	1864 KiB

triples

#include <bits/stdc++.h>

using namespace std;

std::vector<int> construct_range(int M, int K){

}

long long count_triples(std::vector<int> H){
    int n=H.size();
    long long ans=0;
    for(int i=0;i<n;i++){
        int j=i+H[i];
        if(j>=n)continue;
        int k=j+H[j];
        if(k>=n)continue;
        if(H[k]==H[i]+H[j])ans++;
    }
    for(int j=0;j<n;j++){
        int i=j-H[j];
        if(i<0)continue;
        int k=j+H[i];
        if(k>=n)continue;  
        if(H[i]==H[j])continue;
        if(H[k]==H[i]+H[j])ans++;
    }
    return ans;
}

Compilation message (stderr)

triples.cpp: In function 'std::vector<int> construct_range(int, int)':
triples.cpp:7:1: warning: no return statement in function returning non-void [-Wreturn-type]
    7 | }
      | ^

• Subtask 0: 0 / 0
• Subtask 1: 0 / 8
• Subtask 2: 0 / 6
• Subtask 3: 0 / 10
• Subtask 4: 11 / 11
• Subtask 5: 0 / 16
• Subtask 6: 0 / 19
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 0 / 5