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0_0_38998240_31641.c:1:10: fatal error: iostream: No such file or directory
    1 | #include <iostream> #include <cstdio> using namespace std; const int maxn=1<<17; int dp[17][maxn]; int max(int a,int b){ return a>b?a:b; } int main(){ int n,m,i,j; while(scanf("%d",&n)&&n){ scanf("%d",&m); memset(dp,0,sizeof(dp)); int s,e; for(int i=0;i<m;i++){ scanf("%d%d",&s,&e); dp[0][s]=e; } for(i=1;i<=n;i++){ for(j=0;j<maxn;j++){ if(j&(1<<(i-1))){ dp[i][j]=dp[i-1][j]+dp[i-1][j-(1<<(i-1))]; }else { dp[i][j]=dp[i-1][j]; } } } int ans=-1<<30; for(i=0; i<(1<<n);i++) { ans = max(ans, dp[n][i]); } printf("%d\n",ans); } return 0; }
      |          ^~~~~~~~~~
compilation terminated.