제출 #581371

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
581371		Do_you_copy	Pairs (IOI07_pairs)	C++14	30 / 100	26 ms	2628 KiB

pairs

#include <bits/stdc++.h>
#define taskname "test"
#define fi first
#define se second
#define pb push_back
#define faster ios_base::sync_with_stdio(0); cin.tie(0);
using namespace std;

using ll = long long;
using pii = pair <int, int>;

ll min(const ll &a, const ll &b){
    return (a < b) ? a : b;
}

ll max(const ll &a, const ll &b){
    return (a > b) ? a : b;
}

const ll Mod = 1000000007;
const int maxN = 1e5 + 1;
int n, d, m;


struct TPoint{
    int x, y = 0, z = 0;
    bool operator < (const TPoint &other){
        if (x == other.x){
            if (y == other.y) return z < other.z;
            return y < other.y;
        }
        return x < other.x;
    }
};
TPoint a[maxN];

void Init(){
    int type; cin >> type >> n >> d >> m;
    if (type == 1){
        for (int i = 1; i <= n; ++i) cin >> a[i].x;
        sort(a + 1, a + n + 1);
        ll ans = 0;
        for (int i = 1; i <= n; ++i){
            TPoint tem = {a[i].x - d, 0, 0};
            int k = lower_bound(a + 1, a + n + 1, tem) - a;
            ans += i - k;
        }
        cout << ans;
    }
    if (type == 2){
        for (int i = 1; i <= n; ++i) cin >> a[i].x >> a[i].y;
    }
    if (type == 3){
        for (int i = 1; i <= n; ++i) cin >> a[i].x >> a[i].y >> a[i].z;
    }
}

int main(){
    if (fopen(taskname".txt", "r")){
        freopen(taskname".txt", "r", stdin);
    }
    faster
    //freopen(taskname.inp, "r", stdin)
    //freopen(taskname.out, "w", stdout)
    Init();
}

컴파일 시 표준 에러 (stderr) 메시지

pairs.cpp: In function 'int main()':
pairs.cpp:60:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   60 |         freopen(taskname".txt", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 6 / 6
• Subtask 3: 6 / 6
• Subtask 4: 6 / 6
• Subtask 5: 6 / 6
• Subtask 6: 0 / 7
• Subtask 7: 0 / 7
• Subtask 8: 0 / 8
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• Subtask 10: 0 / 10
• Subtask 11: 0 / 10
• Subtask 12: 0 / 10
• Subtask 13: 0 / 10