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Cod sursa(job #767601)
#include <iostream>
#include <fstream>
using namespace std;
int main() {
ifstream f("nrcuv.in");
ofstream g("nrcuv.out");
int n, m, i, j;
bool bun[300][300];
char c, d;
for(c='a'; c<='z'; c++) {
for(d='a'; d<='z'; d++) {
bun[int(c)][int(d)]=1;
}
}
f>>n>>m;
for(i=1; i<=m; i++) {
f>>c>>d;
bun[int(c)][int(d)]=0;
bun[int(d)][int(c)]=0;
}
long long cuv[1005];
for(i=1; i<=n; i++) {
cuv[i]=0;
for(c='a'; c<='z'; c++) {
for(d='a'; d<='z'; d++) {
if(bun[int(c)][int(d)]) cuv[i]++;
}
}
//g<<cuv[i]<<" ";
}
g<<cuv[1]%104659<<"\n";
f.close();
g.close();
return 0;
}