Submission #1305273

#	Time	Username	Problem	Language	Result	Execution time	Memory
1305273		bronze_coder	Sails (IOI07_sails)	C++20	Compilation error	0 ms	0 KiB

sails

#include <bits/stdc++.h>
using namespace std;

int main(){
    int n;
    cin >> n;
    vector<long long> a;
    for(int i=0;i<n;i++){
        int h,k;
        cin >> h >> k;
        while(a.size()<h){
            a.push_back(0);
        }
        for(int i=0;i<k;i++){
            a[h-1-i]++;
        }
    }

    while(true){
        int z = 0;
        for(int i=0;i<a.size()-1;i++){
            if(a[i]<a[i+1]){
                x = a[i]+a[i+1];
                a[i+1] = x/2;
                a[i] = x-x/2;
                z = 1;
                break;
            }
        }
        if(z==0){
            break;
        }
    }
    long long ans = 0;
    for(int i:a){
        ans += i*(i-1)/2;
    }
    cout << ans << endl;
}

Compilation message (stderr)

sails.cpp: In function 'int main()':
sails.cpp:23:17: error: 'x' was not declared in this scope
   23 |                 x = a[i]+a[i+1];
      |                 ^