蒟蒻80分求助！！！点6点8错了

#include<iostream>
#include<algorithm>
using namespace std;
int n;
struct node{
    int no,c=0,m=0,e=0,total=0;
};
node a[600],c;
bool cmp(node x,node y) {
    if(x.total>y.total)return true;
    else if(x.total==y.total) {
        if(x.c>y.c||x.e>y.e||x.m>y.m) return true;
        else return false;
    }
    else return false;
}
int main() {
    cin>>n;
    for(int i=0;i<n;i++) {
        cin>>a[i].c>>a[i].m>>a[i].e;
        a[i].no=i+1;
        a[i].total=a[i].c+a[i].m+a[i].e;
    }
    sort(a,a+n,cmp);
    for(int i=0;i<5;i++) {
        cout<<a[i].no<<" "<<a[i].total<<endl;
    }
    return 0;
}