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提出 二分探索 #139
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提出 二分探索 #139
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apple.c
spear.c
works.c
が正しく動いていません.
src/apple.c
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for(int j = 0; j < n; j++){ | ||
sum += A[j]; | ||
} | ||
return sum; |
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初期値が大きすぎて,最悪桁あふれします.改善してください.
src/spear.c
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for(int j = 0; j < n; j++){ | ||
sum += A[j]; | ||
} | ||
return sum; |
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ここもです.
} | ||
|
||
//人の入れ替わりがk-1回起こるようにする | ||
int p(int m){ |
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原因までは特定してないですが,資料中のケースでも正しく動いていないのでは?
二分探索 再提出 |
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spear
は境界値で正しい答えを返しません.
works
はほとんどのランダムケースで正しい答えを返していないです.(大きめの解を出しています)
src/spear.c
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lb = 0; | ||
ub = m(A); |
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初期値が不適切です.
src/works.c
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int people = 1; | ||
for(int a = 0; a < n-1; a++){ | ||
if(A[a] + A[a+1] <= m){ | ||
A[a+1] = A[a] + A[a+1]; |
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A
に直接操作するのはあまり良い方法ではないです.
何度もp
を呼ぶわけなので.
No description provided.