Submission #824897

#	Time	Username	Problem	Language	Result	Execution time	Memory
824897		alvingogo	Catfish Farm (IOI22_fish)	C++17	Compilation error	0 ms	0 KiB

fish

#include "fish.h"
#include <bits/stdc++.h>
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

const long long inf=1e16;
long long max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
    long long ans=0;
    vector<vector<pair<int,int> > > v(n);
    long long as[2]={0};
    vector<vector<long long> > pre(2,vector<long long>(n));
    for(int i=0;i<m;i++){
        v[x[i]].push_back({y[i],w[i]});
        pre[x[i]][y[i]]+=w[i];
        as[x[i]]+=w[i];
    }
    for(int i=1;i<n;i++){
        pre[0][i]+=pre[0][i-1];
    }
    for(int i=n-2;i>=0;i--){
        pre[1][i]+=pre[1][i+1];
    }
    if(i==2){
        return max(as[0],as[1]);
    }
    else{
        for(int i=0;i<n-1;i++){
            ans=max(ans,pre[0][i]+pre[1][i+1]);
        }
        return ans;
    }
}

Compilation message (stderr)

fish.cpp: In function 'long long int max_weights(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
fish.cpp:25:8: error: 'i' was not declared in this scope
   25 |     if(i==2){
      |        ^
fish.cpp:11:40: warning: control reaches end of non-void function [-Wreturn-type]
   11 |     vector<vector<pair<int,int> > > v(n);
      |                                        ^