tjer @ 2022-01-30 10:40:50

#include<bits/stdc++.h>
#define maxn 1000005
using namespace std;
int n,zero,one,n1;
int main () {
   cin >>n;
    for(int i=1;i<=n;i++){
        cin >>zero >>one;
        for(int j=1;j<=zero;j++){
            cout <<"0";
            n1++;
            if(n1%n==0) cout <<endl;
        }
        for(int j=1;j<=one;j++){
            cout <<"1";
            n1++;
            if(n1%n==0) cout <<endl;
        }
    }
    return 0;
}

by Wiene @ 2022-01-30 11:56:59

@cjiajiayyds 您无法保证一定会有n次的0/1交替

by Wiene @ 2022-01-30 11:57:54

可能会有更多，也可能会少

by Wiene @ 2022-01-30 11:59:45

@cjiajiayyds 可以用

while(cin>>x){

}

来读入，在循环体里判断当前是0/1并输出

by tjer @ 2022-01-30 12:02:13

已AC，更正代码：

#include<bits/stdc++.h>
#define maxn 1000005
using namespace std;
int n,a,n1,flag=1;
int main () {
    cin >>n;
    while(cin >>a){
        if(flag){
            for(int j=1;j<=a;j++){
                cout <<"0";
                n1++;
                if(n1%n==0) cout <<endl;
            }
            flag=!flag;
        }else{
            for(int j=1;j<=a;j++){
                cout <<"1";
                n1++;
                if(n1%n==0) cout <<endl;
            }
            flag=!flag;
        }
    }
    return 0;
}

by tjer @ 2022-01-30 12:06:34

谢谢dalao @AC_duckling