#include<iostream> 
#include<iomanip> 
#include<cmath> 
#include<cstring> 
#include<cstdio> 
#include<algorithm>
const int N=1e3+8;
const int INF=0x3f3f3f;
using namespace std;
int a[N][N],s[N][N],n,m,k,sx,sy,ex,ey;
int main()
 {
	cin>>n>>m>>k;
	for(int i=1;i<=n;i++)
	{
 		for(int j=1;j<=m;j++)
		{
		 	cin>>a[i][j];
		 	s[i][j]=s[i-1][j]+s[i][j-1]-s[i-1][j-1]+a[i][j];
		}		
	}
	while(k--)
	{
		cin>>sx>>sy>>ex>>ey;
		cout<<s[ex][ey]-s[sx-1][ey]-s[ex][sy-1]+s[sx-1][sy-1]<<endl;
	}
	return 0;
 }

#include <bits/stdc++.h> //liaohaoyu
using namespace std;
int s[1001][1001]; //本来想开114514的 
int main()
{
 

	int n, m, k;
	cin >> n >> m >> k;
	for(int i = 1;i <= n;i++)
	{
		for(int j = 1;j <= m;j++)
		{
			cin >> s[i][j];
			s[i][j] = s[i-1][j] + s[i][j-1] - s[i-1][j-1] + s[i][j];
		}
	}
	for(int i = 1;i <= k;i++)
	{
		int x, x2, y, y2;
		cin >> x >> y >> x2 >> y2;
		cout << s[x2][y2] - s[x2][y-1] - s[x-1][y2] + s[x-1][y-1] << endl; 
	}
} 

#include <math.h>
#include <stack>
#include <stdio.h>
#include <iostream>
#include <vector>
#include <iomanip>
#include <string.h>
#include <algorithm>
using namespace std;
#define LL long long
const int N = 1e6 + 10;
const int INF = 0x3f3f3f3f;
int n,m,k,a[1005][1005];
int main(){
	
	cin >> n >> m >>k;
	for (int i=1; i<=n; i++){
		for (int j=1; j<=m; j++){
			cin >> a[i][j];
			a[i][j]=a[i-1][j]+a[i][j-1]-a[i-1][j-1]+a[i][j];
		}
	}
	while(k--){
		int y1,y2,x1,x2;
		cin >> x1>>y1>>x2>>y2;
		cout<<a[x2][y2]-a[x2][y1-1]-a[x1-1][y2]+a[x1-1][y1-1]<<" "<<endl;
	}
	return 0;
}

/*********************************
       all rights reserved.
*********************************/
#include<bits/stdc++.h>
using namespace std;
int n,m,f[1005][1005],k,x1,x2;
int y3,y2,x;
int main()
{    
    cin>>n>>m>>k;
    for(int i=1;i<=n;i++) {
    	for(int j=1;j<=m;j++) {
    		cin>>x;
    		f[i][j]=x+f[i-1][j]+f[i][j-1]-f[i-1][j-1];
		}
	}
	while(k--) {
		cin>>x1>>y3>>x2>>y2;
		cout<<f[x2][y2]-f[x1-1][y2]-f[x2][y3-1]+f[x1-1][y3-1]<<"\n";
	}
    return 0;
}

#include<iostream> 
using namespace std;
int a[1005][1005];
int main(){
	int n,m,x;
	cin>>n>>m>>x;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>a[i][j];
			a[i][j]=a[i-1][j]+a[i][j-1]-a[i-1][j-1]+a[i][j];
		}
	}
	for(int i=1;i<=x;i++){
		int x1,x2,y1,y2;
		cin>>x1>>y1>>x2>>y2;
		cout<<a[x2][y2]-a[x2][y1-1]-a[x1-1][y2]+a[x1-1][y1-1]<<"\n";
	}
}

//#define int long long

using namespace std;

const int N = 1e3 +10;

const int INF=0x3f3f3f;

int n,m,z,sx,sy,ex,ey,a[N][N],b[N][N],d[N];

int main(){

cin>>n>>m>>z;    
    for(int i = 1;i<=n;i++){
        for(int j = 1;j<=m;j++){
            cin>>a[i][j];
            a[i][j] = a[i-1][j] + a[i][j-1]  - a[i-1][j-1] + a[i][j];
        }
    }
    for(int i = 1;i<=z;i++){
        cin>>sx>>sy>>ex>>ey;
        cout<<a[ex][ey] - a[sx-1][ey] - a[ex][sy-1]   + a[sx-1][sy-1]<<endl;
    }
    return 0;
}

最简代码@man！

#include<bits/stdc++.h>
using namespace std;
long long n,m,k,a[10010][10010],s[10010][10010];
int main(){
	cin>>n>>m>>k;
	for(int i=1;i<=n;i++)for(int j=1;j<=m;j++){
		cin>>a[i][j];s[i][j]=s[i-1][j]+s[i][j-1]-s[i-1][j-1]+a[i][j];
	}
	while(k--){
		int i,j,p,q;cin>>i>>j>>p>>q;cout<<s[p][q]-s[p][j-1]-s[i-1][q]+s[i-1][j-1]<<endl;
	}
	return 0;
}

#include <iostream>
#include <stdio.h>
#include <string.h>
#include <queue>
#include <math.h>
#include <vector>
#include <algorithm>
#include <iomanip>
#include <stack>

using namespace std;

#define LL long long
const int N =1e5+10;
const int INF =0x3f3f3f3f;
int a[1001][1001];
int main(){
    int n,m,t,x1,y1,x2,y2;
    cin>>n>>m>>t;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>a[i][j];
            a[i][j]+=a[i-1][j]+a[i][j-1]-a[i-1][j-1];
        }
    }
    while(t--){
        cin>>x1>>y1>>x2>>y2;
        cout<<a[x2][y2]-a[x1-1][y2]-a[x2][y1-1]+a[x1-1][y1-1]<<endl;
    }
return 0;
}

#include<iostream> 
using namespace std;
int n,m,k,a[1005][1005],b[1005][1005],x1,x2,y1,y2;
int main(){
	cin>>n>>m>>k;
	for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++){
			cin>>a[i][j];
			b[i][j]=b[i-1][j]+b[i][j-1]-b[i-1][j-1]+a[i][j]; \\构造前缀和二维数组
		}
	}
		for(int i=1;i<=k;i++){
			cin>>x1>>y1>>x2>>y2;
			cout<<b[x2][y2]-b[x2][y1-1]-b[x1-1][y2]+b[x1-1][y1-1]<<endl;\\代入公式
		}
}