题解 | #打印极值点下标#
打印极值点下标
https://www.nowcoder.com/practice/7fd72f8ac7964ba3b8baa8735246e1f1
#include <stdio.h>
int a[90];
int main() {
int n;
while(scanf("%d",&n) != EOF){
for(int i = 0;i < n;i ++){
scanf("%d",&a[i]);
}
if(a[0] - a[1] != 0){
printf("0 ");
}
for(int i = 1; i < n - 1;i ++){
if(a[i] > a[i - 1] && a[i] > a[i + 1] || a[i] < a[i - 1] && a[i] < a[i + 1]){
printf("%d ", i);
}
}
if(a[n - 1] - a[n - 2] != 0){
printf("%d ",n - 1);
}
printf("\n");
}
return 0;
}
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