dev-c++测试出是298，洛谷全部WA，佬佬，菜菜，救救

HJCshifw @ 2022-11-08 09:25:43

#include<stdio.h>
int main(){
    int l,m,k,a[100000],count=0,x,y;
    scanf("%d",&l);
    for(k=0;k<l;k++)
        a[k]=1;
    scanf("%d\n",&m);
    for(k=1;k<m;k++){
        scanf("%d %d\n",&x,&y);
        for(;x<=y;x++)
            a[x]=0;
    }
    for(k=1;k<l;k++){
        if(a[k]==1)
        count++;
    }
    printf("%d",count);
    return 0;
}

by sandwich03 @ 2022-11-08 09:46:25

#include <bits/stdc++.h>
using namespace std;
int main()
{
    bool a[10005];
int l, m, start, end, s = 0;
cin>>l>>m;
for(int i = 0; i <= l; ++i)
a[i] = true;
for(int i = 0; i < m; ++i) 
{
cin>>start>>end;
for(int j = start; j <= end; ++j)
a[j] = false;
}
for(int i = 0; i <= l; ++i)
{
if(a[i])
s++;
}
cout<<s;
    return 0;
}

by sandwich03 @ 2022-11-08 09:47:28

@HJCshifw 代码之前的

by Ruiqun2009 @ 2022-11-08 09:50:28

@HJCshifw 你敢在 main() 函数里开数组还不 memset？

by HJCshifw @ 2022-11-08 10:15:14

@Ruiqun2009 我我我是小白还，不知道啥意思，照猫画虎用的数组

by HJCshifw @ 2022-11-08 10:15:55

@linzhi123 谢谢您不过我才刚开始学c语言，看不太懂c++

by chenyucheng_1 @ 2022-11-08 15:33:51

不仅在main()函数里开数组，还开这么大???