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Zengtudor 2024-10-09 00:58:47 +08:00
parent 4220c362fa
commit 489dd58f85
1 changed files with 1 additions and 1 deletions
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src/P2822/P2822_debug.cpp
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@ -88,7 +88,7 @@ static void init(){
c[i][j] = (c[i-1][j-1] + c[i-1][j])%k; c[i][j] = (c[i-1][j-1] + c[i-1][j])%k;
} }
} }
for(ull i = 2;i<max_n-1;i++){ //t被修改 for(ull i = 2;i<max_n;i++){ //注意这里越界了，这是个bug示例
for(ull j{1};j<=i;j++){ for(ull j{1};j<=i;j++){
prefix[i][j] = prefix[i-1][j]+prefix[i][j-1]-prefix[i-1][j-1] + (c[i][j]==0?1:0); prefix[i][j] = prefix[i-1][j]+prefix[i][j-1]-prefix[i-1][j-1] + (c[i][j]==0?1:0);
} }