제출 #62077

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
62077		bazsi700	ICC (CEOI16_icc)	C++14	0 / 100	364 ms	760 KiB

icc

#include <bits/stdc++.h>
#include "icc.h"
using namespace std;

#define MOD 1000000007
#define ll long long int
#define vi vector<int>
#define vii vector< vector<int> >
#define PI 3.1415926535897932384626433832795
#define INF 9223372036854775807LL

//13:22

int root[105];

int findroot(int x) {
	if(root[x] != x) {
		root[x] = findroot(root[x]);
	}
	return root[x];
}

void join(int a, int b) {
	if(rand()%2) {
		root[findroot(a)] = findroot(b);
	} else {
		root[findroot(b)] = findroot(a);
	}
}

void run(int n) {
	srand(42);
	for(int i = 1; i <= n; i++) {
		root[i] = i;
	}
	for(int i = 1; i < n; i++) {
		set<int> roots;
		vii inroot(n+1,vi());
		set<int> gr;
		for(int i = 1; i <= n; i++) {
			roots.insert(root[i]);
			inroot[root[i]].push_back(i);
			gr.insert(i);
		}
		int xgr,ygr,x,y;
		for(int curr : roots) {
			int a[inroot[curr].size()];
			int ind = 0;
			for(int el : inroot[curr]) {
				gr.erase(el);
				a[ind++] = el;
			}
			ind = 0;
			int b[n-inroot[curr].size()];
			for(int el : gr) {
				b[ind++] = el;
			}
			int an = query(inroot[curr].size(),n-inroot[curr].size(),a,b);
			if(an == 1) {
				xgr = curr;
				break;
			}
			for(int el : inroot[curr]) {
				gr.insert(el);
			}
		}
		int ind = 0;
		int b[n-inroot[xgr].size()];
		for(int el : gr) {
			b[ind++] = el;
		}
		for(auto posx : inroot[xgr]) {
			int a[1];
			a[0] = posx;
			int an = query(1,n-inroot[xgr].size(),a,b);
			if(an) {
				x = posx;
				break;
			}
		}
		for(auto posy : gr) {
			int bb[1];
			int a[1];
			a[0] = x;
			bb[0] = posy;
			int an = query(1,1,a,bb);
			if(an) {
				y = posy;
				break;
			}
		}
		join(x,y);
		setRoad(x,y);
	}
}

컴파일 시 표준 에러 (stderr) 메시지

icc.cpp: In function 'void run(int)':
icc.cpp:45:11: warning: unused variable 'ygr' [-Wunused-variable]
   int xgr,ygr,x,y;
           ^~~
icc.cpp:45:7: warning: 'xgr' may be used uninitialized in this function [-Wmaybe-uninitialized]
   int xgr,ygr,x,y;
       ^~~
icc.cpp:93:10: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   setRoad(x,y);
   ~~~~~~~^~~~~
icc.cpp:93:10: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 21
• Subtask 5: 0 / 29
• Subtask 6: 0 / 10