제출 #98583

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
98583		Mercenary	Topovi (COCI15_topovi)	C++14	120 / 120	1310 ms	34348 KiB

topovi

#include<bits/stdc++.h>

using namespace std;
#define taskname "TEST"
#define pb	push_back
typedef long double ld;
typedef long long ll;
const int maxn = 1e5 + 5;
map<int,int> mcol , mrow;
map<int,int> cntcol , cntrow;

int n , p , k;
map<pair<int,int>,int> mmap;
#define mp make_pair
ll res = 0;
void Move(int r , int c , int val){
    int &valr = mrow[r];int &valc = mcol[c];
    if(valr != valc)res++;
    res -= 2 * n - cntrow[valc] - cntcol[valr];

    cntcol[valc]--;
    cntrow[valr]--;
    valr ^= val;valc ^= val;

    cntcol[valc]++;
    cntrow[valr]++;

    res += 2 * n - cntrow[valc] - cntcol[valr];

    if(valr != valc)res--;
    mmap[mp(r,c)] ^= val;
}
int main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	if(fopen(taskname".INP","r"))
        freopen(taskname".INP", "r",stdin) ,
        freopen(taskname".OUT", "w",stdout);
    cin >> n >> k >> p;
    cntcol[0] = cntrow[0] = n;
    for(int i = 1 ; i <= k ; ++i)
    {
        int r , c , x;
        cin >> r >> c >> x;
        Move(r,c,x);
    }
    for(int i = 1 ; i <= p ; ++i){
        int r1 , c1 , r2 , c2;cin >> r1 >> c1 >> r2 >> c2;
        int val = mmap[mp(r1,c1)];
        Move(r1,c1,val);
        Move(r2,c2,val);
        cout << res << '\n';
    }
}

컴파일 시 표준 에러 (stderr) 메시지

topovi.cpp: In function 'int main()':
topovi.cpp:38:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
         freopen(taskname".INP", "r",stdin) ,
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
         freopen(taskname".OUT", "w",stdout);
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
topovi.cpp:38:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]

• Subtask 1: 120 / 120