Created
December 18, 2018 10:17
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#include <cmath> | |
#include <cstdio> | |
#include <vector> | |
#include <iostream> | |
#include <algorithm> | |
#include <climits> | |
using namespace std; | |
typedef long long int lli; | |
struct number{ | |
lli data; | |
lli min; | |
}; | |
vector <vector <number>> ar; | |
lli n; | |
int main() { | |
scanf("%lli", &n); | |
ar.resize(n, vector <number>(n)); | |
for(int i=0; i<n; i++){ | |
for(int j=0; j<n; j++){ | |
lli x; | |
scanf("%lli", &x); | |
ar[i][j] = number{x, 0}; | |
} | |
} | |
for(int j=n-1; j>=0; j--){ | |
for(int i=n-1; i>=0; i--){ | |
if(i == n-1 && j == n-1){ | |
ar[i][j].min = ar[i][j].data; | |
continue; | |
} | |
lli down_min = INT_MAX; | |
if(i+1 < n) | |
down_min = ar[i+1][j].min; | |
lli right_min = INT_MAX; | |
if(j+1 < n) | |
right_min = ar[i][j+1].min; | |
ar[i][j].min = min(down_min, right_min) + ar[i][j].data; | |
} | |
} | |
/*for(int i=0; i<n; i++){ | |
for(int j=0; j<n; j++){ | |
printf("%lli,%lli ", ar[i][j].data, ar[i][j].min); | |
} | |
printf("\n"); | |
}*/ | |
printf("%lli", ar[0][0].min); | |
return 0; | |
} |
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