#include<cstdio> #include<algorithm> #include<cstring> #include<iostream> #include<cstdlib> #include<cmath> #include<vector> #include<map> #include<set> #include<queue> #include<bitset> using namespace std; #define inf 1000000005 typedef long long ll; typedef double db; void gn(int &x){ int sg=1;char c;while(((c=getchar())<'0'||c>'9')&&c!='-'); if(c=='-')sg=-1,x=0;else x=c-'0'; while((c=getchar())>='0'&&c<='9')x=x*10+c-'0'; x*=sg; } void gn(ll &x){ int sg=1;char c;while(((c=getchar())<'0'||c>'9')&&c!='-'); if(c=='-')sg=-1,x=0;else x=c-'0'; while((c=getchar())>='0'&&c<='9')x=x*10+c-'0'; x*=sg; } const int mo=1000000007; int qp(int a,ll b){int ans=1;do{if(b&1)ans=1ll*ans*a%mo;a=1ll*a*a%mo;}while(b>>=1);return ans;} int gcd(int a,int b){return b?gcd(b,a%b):a;} int n; int main() { scanf("%d",&n); int su=0; int mi=1000000000; for (int i=1;i<=n;i++){ int x;gn(x); su+=x; if(x&1)mi=min(mi,x); } if(su&1)su-=mi; if(su==0)printf("NIESTETY\n"); else printf("%d\n",su); return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | #include<cstdio> #include<algorithm> #include<cstring> #include<iostream> #include<cstdlib> #include<cmath> #include<vector> #include<map> #include<set> #include<queue> #include<bitset> using namespace std; #define inf 1000000005 typedef long long ll; typedef double db; void gn(int &x){ int sg=1;char c;while(((c=getchar())<'0'||c>'9')&&c!='-'); if(c=='-')sg=-1,x=0;else x=c-'0'; while((c=getchar())>='0'&&c<='9')x=x*10+c-'0'; x*=sg; } void gn(ll &x){ int sg=1;char c;while(((c=getchar())<'0'||c>'9')&&c!='-'); if(c=='-')sg=-1,x=0;else x=c-'0'; while((c=getchar())>='0'&&c<='9')x=x*10+c-'0'; x*=sg; } const int mo=1000000007; int qp(int a,ll b){int ans=1;do{if(b&1)ans=1ll*ans*a%mo;a=1ll*a*a%mo;}while(b>>=1);return ans;} int gcd(int a,int b){return b?gcd(b,a%b):a;} int n; int main() { scanf("%d",&n); int su=0; int mi=1000000000; for (int i=1;i<=n;i++){ int x;gn(x); su+=x; if(x&1)mi=min(mi,x); } if(su&1)su-=mi; if(su==0)printf("NIESTETY\n"); else printf("%d\n",su); return 0; } |