제출 #91914

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
91914		easrui	보물 찾기 (CEOI13_treasure2)	C++14	100 / 100	2 ms	376 KiB

treasure

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

int S[101][101]; // S[a][b] a행 b열까지합
void findTreasure(int N){
    static int S[101][101]; // S[a][b] a행 b열까지합
    int L,R,U,D,tmp,res;
    int a;
    if(a%2) a= N/2+1;
    else a=(N+1)/2;
    int b=(N+1)/2;
    L=1,R=N,U=1,D=N;
    int x = countTreasure(1,L,N,R);
    tmp = x;
    for(U=2,D=N;U<=a;U++){
        res = countTreasure(U,L,D,R);
        if(L==1){
            S[U-1][R] = tmp - res;
        }
        else S[U-1][L-1] = S[U-1][N] - (tmp - res);
        tmp = res;
    }
    tmp = x;
    for(U=1,D=N-1;D>=b;D--){
        res = countTreasure(U,L,D,R);
        if(L==1) S[D+1][R] = tmp - res;
        else S[D+1][L-1] = S[D+1][N] - (tmp - res);
        tmp = res;
    }
    int t=0;
    for(int i=1; i<=D; i++) t+=S[i][R];
    if(L==1) S[D+1][R] = tmp - t;
    else S[D+1][L-1] = S[D+1][N] - (tmp - t);
    for(L=2,R=N;L<=a;L++){
        int x = countTreasure(1,L,N,R);
        tmp = x;
        for(U=2,D=N;U<=a;U++){
            res = countTreasure(U,L,D,R);
            if(L==1) S[U-1][R] = tmp - res;
            else S[U-1][L-1] = S[U-1][N] - (tmp - res);
            tmp = res;
        }
        tmp = x;
        for(U=1,D=N-1;D>=b;D--){
            res = countTreasure(U,L,D,R);
            if(L==1) S[D+1][R] = tmp - res;
            else S[D+1][L-1] = S[D+1][N] - (tmp - res);
            tmp = res;
        }
    int t=0;
    for(int i=1; i<=D; i++) t+=S[i][R]-S[i][L-1];
    if(L==1) S[D+1][R] = tmp - t;
    else S[D+1][L-1] = S[D+1][N] - (tmp - t);
    }
    for(L=1,R=N-1;R>=b;R--){
        int x = countTreasure(1,L,N,R);
        tmp = x;
        for(U=2,D=N;U<=a;U++){
            res = countTreasure(U,L,D,R);
            if(L==1) S[U-1][R] = tmp - res;
            else S[U-1][L-1] = S[U-1][N] - (tmp - res);
            tmp = res;
        }
        tmp = x;
        for(U=1,D=N-1;D>=b;D--){
            res = countTreasure(U,L,D,R);
            if(L==1){
                S[D+1][R] = tmp - res;
            }
            else S[D+1][L-1] = S[D+1][N] - (tmp - res);
            tmp = res;
        }
        int t=0;
        for(int i=1; i<=D; i++) t+=S[i][R];
        if(L==1) S[D+1][R] = tmp - t;
        else S[D+1][L-1] = S[D+1][N] - (tmp - t);
    }
    for(int x=1; x<=N; x++)
        for(int y=1; y<=N; y++){
            if(S[y][x]!=S[y][x-1]){
                Report(y,x);
            }
        }
}

컴파일 시 표준 에러 (stderr) 메시지

treasure.cpp: In function 'void findTreasure(int)':
treasure.cpp:10:11: warning: 'a' is used uninitialized in this function [-Wuninitialized]
     if(a%2) a= N/2+1;
           ^

• Subtask 1: 100 / 100