Submission #126518

#	Time	Username	Problem	Language	Result	Execution time	Memory
126518		EntityIT	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	2 ms	504 KiB

joi2019_ho_t4

#include<bits/stdc++.h>

using namespace std;

const int N = (int)1e5 + 5;
int n, cntX[N], curCoin[3], cntY[3];
long long ans;

int main () {
    scanf("%d", &n);
    for (int i = 1; i <= (n << 1); ++i) {
        int x, y; scanf("%d %d", &x, &y);
        if (x < 1) ans += 1 - x, x = 1;
        if (n < x) ans += x - n, x = n;
        if (y < 1) ans += 1 - y, y = 1;
        if (2 < y) ans += y - 2, y = 2;
        ++cntX[x];
        ++cntY[y];
    }

    ans += abs(cntY[1] - cntY[2]) / 2;

    for (int i = 1, cur = 0; i < n; ++i) {
        cur += cntX[i] - 2;
        ans += abs(cur);
    }

    printf("%lld", ans);

    return 0;
}

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'int main()':
joi2019_ho_t4.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
joi2019_ho_t4.cpp:12:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         int x, y; scanf("%d %d", &x, &y);
                   ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63