#include <bits/stdc++.h>
using namespace std;

long long w,x,h,q,ans;
long long x1,x2,y1,y2,z1,z2;
bool a[101][101][101];

int main(){
	scanf("%lld%lld%lld%lld",&w,&x,&h,&q);
	for(long long i=0;i<q;++i){
		cin>>x1>>y1>>z1>>x2>>y2>>z2;
		for(long long x=x1;x<=x2;++x){
			for(long long y=y1;y<=y2;++y){
				for(long long z=z1;z<=z2;++z){
					a[x][y][z] = 1;
				}
			}
		}
	}
	for(long long i=1;i<=w;++i){
		for(long long j=1;j<=x;++j){
			for(long long k=1;k<=h;++k){
				if(a[i][j][k] == 0) ++ans;
			}
		}
	}
	printf("%lld",ans);
	return 0;
}

CE内容是'long long int y1'redeclared as different kind of symbol'

我把y1改成Y1就AC了

求助~~~