1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | #include <stdio.h>
#include <stdlib.h>
#define MAXN 2048
#define MAXNN (MAXN*MAXN)
int ia = 0;
int a[MAXNN];
int main() {
int n, k, m;
scanf("%d%d", &n, &k);
for (int i=1;i<=n;i++) {
for (int j=1;j<=i;j++) {
scanf("%d", &a[ia]);
ia++;
}
}
m = 2019;
for (int i=0;i<n;i++) {
for (int j=0;j<=i;j++) {
if ((j+1)*(i-j+1)<=k && m>a[j+(i+1)*i/2])
m = a[j+(i+1)*i/2];
// printf("%d ", a[j+(i+1)*i/2]);
//printf("%dx%d ", j+1, i-j+1);
}
//printf("\n");
}
printf("%d\n", m);
return 0;
}
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