题目请看
最近被一些模拟赛蹂躏了，这场是来思路来的最快的一场比赛
T1
So easy,but...
很简单，判差值和数量即可，我却漏了细节，82point，磕细节磕了1h，才想出正解，64行
贴一下代码
/*
User:Kevinrzy103874
Uid:72
Age:12
*/
#include <bits/stdc++.h>
using namespace std;
#define fre(c) freopen(c".in","r",stdin);freopen(c".out","w",stdout);
#define ll long long
#define endl "\n"
#define ios ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define cst const
cst ll N = 1e5 + 5;
bool flag = true;
ll n, a[N], sum;
inline ll read() {char c;ll sum = 0, f = 1;c = getchar();while (!isdigit(c)) {if (c == '-')f *= -1;c = getchar();}while (isdigit(c)) {sum = sum * 10 + (c - '0');c = getchar();}return sum * f;
}
int main() {// iosfre("rose")n = read();for (ll i = 1; i <= n; i ++) {a[i] = read();if (a[i] < a[i - 1]) {// cout << 111;a[i] ++;sum ++;if (a[i - 1] - a[i] > 1 && i - 1 != 0) {cout << "No";return 0;}}// cout << a[i] << endl;}for (ll i = 1; i <= n; i ++) {if (a[i] < a[i - 1]) {flag = false;break ;}}if (flag) {cout << "Yes";return 0;}if (sum > 1) {cout << "No";return 0;}cout << "Yes";return 0;
}
赛时：100point
赛后：-point
T2
贴一下代码
赛时：point
赛后：point
T3
贴一下代码
赛时：point
赛后：point
T4
贴一下代码
赛时：point
赛后：point
T5
贴一下代码
赛时：point
赛后：point
T6
贴一下代码
赛时：point
赛后：point
T7
贴一下代码
赛时：point
赛后：point
T8
贴一下代码
赛时：point
赛后：point