蒟蒻求助，谢谢大佬们，我的输出一直是35.00

@NaCl__H2O 2020-08-08 18:13 回复

哪里错了，我一直是输出35.00，不明白哪里有问题？？？

#include<bits/stdc++.h>
using namespace std;
int cj[10001][10001];
int n,m;
float maxx=0.0,minn=10000001;
float head[100001];
int j,sum=0;
float mxxx=0.0;

void hs(){
    for(int i=1;i<=n;i++){
        for(j=1;j<=m;j++){
            if(cj[i][j]>maxx){
                maxx=cj[i][j];
            }
            if(cj[i][j]<minn){
                minn=cj[i][j];
            }
            sum+=cj[i][j];
        }
        sum=sum-minn-maxx;
        head[i]=sum/(m-2);
    }
    for(int i=1;i<n;i++){
        for(int k=i+1;k<=n;k++){
            if(head[i]<head[k]){
                float temp=head[i];
                head[i]=head[k];
                head[k]=temp;
            }
        }
    }
    for(int i=1;i<=n;i++){
        if(head[i]>mxxx)
        mxxx=head[i];
    }
    printf("%.2f",mxxx);

}

int main(){
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>cj[i][j];
        }
    }
    hs();
    return 0;
}

@星光0000 2020-08-08 18:18 回复举报

@NaCl__H2O 没初始化maxx，minn和sum吧

@NaCl__H2O 2020-08-08 18:25 回复举报

@星光0000 谢谢大佬，~~我现在AC两个点了QAQ~~

@星光0000 2020-08-08 18:28 回复举报

@NaCl__H2O ~~换double~~

head[i]=sum/(m-2);

你sum和m都是int型的，就直接除啊（

@NaCl__H2O 2020-08-08 18:33 回复举报

@星光0000 az，换成float或者double就成20分了 ~~QAQ~~

@NaCl__H2O 2020-08-08 18:35 回复举报

@星光0000


#include<bits/stdc++.h>
using namespace std;
int cj[10001][10001];
int n;
int m;
double maxx=0.0,minn=10000001.0;
double head[100001];
int sum=0;
int j;
double mxxx=0.0;

void hs(){
    for(int i=1;i<=n;i++){
        for(j=1;j<=m;j++){
            if(cj[i][j]>maxx){
                maxx=cj[i][j];
            }
            if(cj[i][j]<minn){
                minn=cj[i][j];
            }
            sum+=cj[i][j];
        }
        sum=sum-minn-maxx;
        maxx=0;
        minn=0;
        head[i]=sum/(m-2);
        sum=0;
    }
    for(int i=1;i<n;i++){
        for(int k=i+1;k<=n;k++){
            if(head[i]<head[k]){
                float temp=head[i];
                head[i]=head[k];
                head[k]=temp;
            }
        }
    }
    for(int i=1;i<=n;i++){
        if(head[i]>mxxx)
        mxxx=head[i];
    } 
    printf("%.2lf",mxxx);

}

int main(){
    cin>>n>>m;
    for(int i=1;i<=n;i++){
        for(int k=1;k<=m;k++){
            cin>>cj[i][k];
        }
    }
    hs();
    return 0;
}