归类了 OJ,整理了一下

This commit is contained in:
Fengyi Chen
2024-02-15 22:38:30 +08:00
parent 76c1ecea65
commit 8dbc0861b2
231 changed files with 0 additions and 0 deletions

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@ -0,0 +1,30 @@
#include <iostream>
#include <iomanip>
#include <cstring>
#include <cstdio>
#include <ctime>
#include <cmath>
typedef long long l;
typedef double d;
using namespace std;
int main(){
l a,b,c[100][100],sum=0;
cin >>a>>b;
for(int i=0;i<a;i++){
for(int j=0;j<a;j++){
cin >>c[i][j];
}
}
if(b==1){
for(int i=a-1;i>=0;i--){
sum+=c[i][a-i-1];
}
}
if(b==0){
for(int i=0;i<a;i++){
sum+=c[i][i];
}
}
cout <<sum;
return 0;
}