Eroare de compilare: user.c: In function ‘main’: user.c:1:1: warning: implicit declaration of function ‘freopen’ [-Wimplicit-function-declaration] int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^ user.c:1:37: error: ‘stdin’ undeclared (first use in this function) int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^ user.c:1:37: note: each undeclared identifier is reported only once for each function it appears in user.c:1:70: error: ‘stdout’ undeclared (first use in this function) int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^ user.c:1:1: warning: implicit declaration of function ‘scanf’ [-Wimplicit-function-declaration] int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^ user.c:1:103: warning: incompatible implicit declaration of built-in function ‘scanf’ [enabled by default] int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^ user.c:1:1: warning: implicit declaration of function ‘printf’ [-Wimplicit-function-declaration] int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^ user.c:1:215: warning: incompatible implicit declaration of built-in function ‘printf’ [enabled by default] int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^ user.c:1:99: warning: unused variable ‘ans’ [-Wunused-variable] int main(){freopen("puncte2.in","r",stdin);freopen("puncte2.out","w",stdout);long long a[4],N,i,j,ans;scanf("%lld",&N);for(i=0;i<4;++i)a[i]=N+(i-3);for(i=2;i<=4;++i){for(j=0;j<4;++j)if(a[j]%i==0){a[j] /= i;break;}}printf("%lld",a[0]*a[1]*a[2]*a[3]);return 0;} ^