unknown bug

This commit is contained in:
Zengtudor 2024-10-08 19:43:06 +08:00
parent 3ec610d927
commit 0c7b22b1ea

View File

@ -15,7 +15,7 @@ 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;i++){ for(ull i {2};i<max_n;i++){ //t被修改
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);
} }