求助大佬，二维前缀和80分

//无线网路发射器选址.
#include<bits/stdc++.h>
using namespace std;
int d, n, dt[200][200], sum[200][200], z[200][200], maxx;
int main(){
    cin >> d >> n;
    for (int i = 1;i<=n;i++){
        int x, y, k;
        cin >> x >> y >> k;
        dt[x+1][y+1] += k;
    }
    for (int i = 1; i <= 129;i++){
        for (int j = 1; j <= 129;j++){
            sum[i][j] = sum[i][j - 1] + sum[i - 1][j] - sum[i - 1][j - 1] + dt[i][j];
        }
    }
    for (int i = 1; i <= 129;i++){
        for (int j = 1; j <= 129;j++){
            z[i][j] = sum[i][j] - sum[i - d-d - 1][j] - sum[i][j - d-d - 1] + sum[i - d-d - 1][j - d-d - 1];
            maxx = max(maxx, z[i][j]);
        }
    }
    int ans = 0;
    for (int i = 1; i <= 129;i++){
        for (int j = 1; j <= 129;j++){
            if(z[i][j]==maxx)
                ans++;
        }
    }
    cout <<ans<<" "<< maxx;
}