显示的是

/tmp/compiler_byctqpgi/src:3:9: 致命错误：algorithm：No such file or directory

3 | #include

| ^~~~~~~~~~~

编译中断。（先提前感谢大佬答复）

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<algorithm>
using namespace std;
int main() {
	int n;
	int a[1005] = { 0 };
	int c[1005] = { 0 };
	scanf("%d",&n);
	for (int i = 0; i < n; i++) {
		scanf("%d", &a[i]);
	}
	for (int i = 0; i < n-1; i++) {
		c[i] = abs(a[i + 1] - a[i]);
	}
	sort(c, c + n-1);
	for (int i = 0; i < n - 1; i++) {
		if (c[i] != i + 1) { 
			printf("Not jolly");
			return 0;
		}
	}
	printf("Jolly");
	return 0;

}