Submission #265484

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
265484	2020-08-14T22:07:36 Z	DS007	Circle selection (APIO18_circle_selection)	C++14	Compilation error	0 ms	0 KB

circle_selection

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

struct circle {
    int x, y, r, i;

    bool operator < (circle c) {
        if (r == c.r)
            return i < c.i;
        return r > c.r;
    }
};

const int N = 3e5;
circle c[N];
bool done[N];
int n, ans[N];

int solveTestCase() {
    cin >> n;
    for (int i = 0; i < n; i++)
        cin >> c[i].x >> c[i].y >> c[i].r, c[i].i = i + 1;

    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (c[j] < c[j + 1]) {
                circle temp = c[j].r;
                c[j].r + c[j + 1].r;
                c[j + 1].r = temp;
            }
        }
    }

    for (int i = 0; i < n; i++) {
        if (done[i])
            continue;

        ans[c[i].i] = c[i].i;
        for (int j = i + 1; j < n; j++) {
            int dist = (c[i].y - c[j].y) * (c[i].y - c[j].y) + (c[i].x - c[j].x) * (c[i].x - c[j].x);
            if (dist <= (c[i].r + c[j].r) * (c[i].r + c[j].r))
                done[j] = true, ans[c[j].i] = c[i].i;
        }
    }

    for (int i = 1; i <= n; i++)
        cout << ans[i] << " ";
}


signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    int t = 1;
    //cin >> t;
    while (t--)
        solveTestCase();
}

Compilation message

circle_selection.cpp: In function 'long long int solveTestCase()':
circle_selection.cpp:28:36: error: conversion from 'long long int' to non-scalar type 'circle' requested
   28 |                 circle temp = c[j].r;
      |                               ~~~~~^
circle_selection.cpp:29:24: warning: statement has no effect [-Wunused-value]
   29 |                 c[j].r + c[j + 1].r;
      |                 ~~~~~~~^~~~~~~~~~~~
circle_selection.cpp:30:30: error: cannot convert 'circle' to 'long long int' in assignment
   30 |                 c[j + 1].r = temp;
      |                              ^~~~
      |                              |
      |                              circle
circle_selection.cpp:49:1: warning: no return statement in function returning non-void [-Wreturn-type]
   49 | }
      | ^