제출 #155136

#제출 시각아이디문제언어결과실행 시간메모리
155136karmaXylophone (JOI18_xylophone)C++14
0 / 100
3 ms376 KiB
#include "xylophone.h" #include<bits/stdc++.h> #define ll long long using namespace std; const int N = 6006; int a[N], d[2][N], mx, mn, up; void solve(int n) { for(int i = 1; i < n; ++i) { d[1][i - 1] = query(i, i + 1); if(i > 1) d[2][i - 2] = query(i - 1, i + 1); } a[0] = mn = mx = 0, a[1] = d[1][0]; up = 1; if(n > 1) { if(a[mx] < a[1]) mx = 1; if(a[mn] > a[1]) mn = 1; } for(int i = 2; i < n; ++i) { if(d[1][i - 1] + d[1][i - 2] != d[2][i - 2]) up *= (-1); a[i] = a[i - 1] + up * d[1][i - 1]; if(a[mx] < a[i]) mx = i; if(a[mn] > a[i]) mn = i; } if(mn < mx) { mn = a[mn]; for(int i = 0; i < n; ++i) answer(i + 1, a[i] - mn + 1); } else { mx = a[mx]; for(int i = 0; i < n; ++i) answer(i + 1, mx - a[i] + 1); } }

컴파일 시 표준 에러 (stderr) 메시지

xylophone.cpp: In function 'void solve(int)':
xylophone.cpp:13:22: warning: array subscript is above array bounds [-Warray-bounds]
         if(i > 1) d[2][i - 2] = query(i - 1, i + 1);
                   ~~~^
xylophone.cpp:21:44: warning: array subscript is above array bounds [-Warray-bounds]
         if(d[1][i - 1] + d[1][i - 2] != d[2][i - 2]) up *= (-1);
                                         ~~~^
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