Submission #497466

#	Time	Username	Problem	Language	Result	Execution time	Memory
497466		kingline	Growing Vegetable is Fun 3 (JOI19_ho_t3)	C++17	15 / 100	1 ms	324 KiB

joi2019_ho_t3

/*#pragma GCC optimize("O3")
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")*/
#include <bits/stdc++.h>
#pragma GCC optimize ("unroll-loops,Ofast,O3")
#pragma GCC target("avx,avx2,fma")
//#define file(data) freopen(data".in", "r", stdin); freopen(data".out", "w", stdout);
#define pb push_back
//#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(data) data.begin() , data.end()
#define endl '\n'
//freopen("nenokku_easy.in", "r", stdin);
//freopen("nenokku_easy.out", "w", stdout);
#define int long long
#define pii pair < int, int >
#define pll pair < long long, long long >

using namespace std;

typedef long long ll;
const int N = 1e6 + 5;
const int M = 350;
const int mod = 1e9 + 7;

int n, a[N];
char s[N];

main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //file("pieaters");
    cin >> n;
    int r = 0, g = 0;
    for(int i = 1; i <= n; i++) {
        cin >> s[i];
        if(s[i] == 'R') ++r;
        else g++;
    }
    if(g != r && g + 1 != r && g != r + 1) {
        cout << -1;
    } else {
        int res1 = 1e9, res2 = 1e9;
        if(g >= r) {
            res1 = 0;
            int num = 1;
            for(int i = 1; i <= n; i++) {
                if(s[i] == 'G') {
                    res1 += abs(num - i);
                    num += 2;
                }
            }
        }
        if(g <= r) {
            res2 = 0;
            int num = 1;
            for(int i = 1; i <= n; i++) {
                if(s[i] == 'R') {
                    res2 += abs(num - i);
                    num += 2;
                }
            }
        }
        cout << min(res1, res2);
    }
}

/*
5 9 7
...##....
..#.##..#
..#....##
.##...#..
....#....
WS?EE??
*/

Compilation message (stderr)

joi2019_ho_t3.cpp:30:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   30 | main() {
      | ^~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 55
• Subtask 3: 15 / 15
• Subtask 4: 0 / 25