大佬帮忙看看为什么不能过

Zzy20060323 @ 2024-09-06 16:38:25

#include<stdio.h>
int a[1000][2];
int b[1000];

int main()
{
    int l, m,num;
    scanf("%d%d", &l, &m);
    for (int i = 0; i < m; i++)
    {
        scanf("%d%d", &a[i][0], &a[i][1]);
    }
    num = l + 1;
    for (int i = 0; i < m; i++)
    {
        for (int j = a[i][0]; j <= a[i][1]; j++)
        {
            b[j] = 1;
        }
    }
    for (int k = 0; k < l + 1; k++)
    {
        if (b[k] == 1)
        {
            num--;
        }
    }
    printf("%d", num);
    return 0;
}

by Yxy7952 @ 2024-09-06 16:42:42

@Zzy20060323

数组开大点

#include<stdio.h>
int a[10005][2];
int b[10005];

int main()
{
    int l, m,num;
    scanf("%d%d", &l, &m);
    for (int i = 0; i < m; i++)
    {
        scanf("%d%d", &a[i][0], &a[i][1]);
    }
    num = l + 1;
    for (int i = 0; i < m; i++)
    {
        for (int j = a[i][0]; j <= a[i][1]; j++)
        {
            b[j] = 1;
        }
    }
    for (int k = 0; k < l + 1; k++)
    {
        if (b[k] == 1)
        {
            num--;
        }
    }
    printf("%d", num);
    return 0;
}

by hanxiaofensheng @ 2024-09-06 17:01:08

#include <bits/stdc++.h>
using namespace std;
int l, m, a, b, c[10001]={0}, ans;
int main(){
    cin>> l>> m;
    for(int i=1;i<=m;i++){
        cin>> a>> b;
        for(int j=a;j<=b;j++) c[j]=1;
    }
    for(int i=0;i<=l;i++) if(c[i]==0) ans++;
    cout<<ans;
    return 0;
}

求关注

by White___Fox @ 2024-09-26 08:37:10

我是大佬，但我不想告诉你