Eroare de compilare: main.cpp: In function 'int main()': main.cpp:25:81: error: invalid conversion from 'int' to 'FILE* {aka _IO_FILE*}' [-fpermissive] freopen("rmq.in","r",stdin),freopen("rmq.out","w",stdout),fgets(r,1,30,stdin),n=A(),m=A(); ^ main.cpp:25:81: error: too many arguments to function 'char* fgets(char*, int, FILE*)' In file included from /usr/include/stdio.h:936:0, from /usr/include/c++/6/cstdio:42, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/stdio2.h:253:1: note: declared here fgets (char *__restrict __s, int __n, FILE *__restrict __stream) ^~~~~ main.cpp:27:27: error: invalid conversion from 'int' to 'FILE* {aka _IO_FILE*}' [-fpermissive] fgets(r,1,30,stdin),o=0,b[0][i]=A(); ^ main.cpp:27:27: error: too many arguments to function 'char* fgets(char*, int, FILE*)' In file included from /usr/include/stdio.h:936:0, from /usr/include/c++/6/cstdio:42, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/stdio2.h:253:1: note: declared here fgets (char *__restrict __s, int __n, FILE *__restrict __stream) ^~~~~ main.cpp:26:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:28:2: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' for(i=2;i<=n;i++) ^~~ main.cpp:34:27: error: invalid conversion from 'int' to 'FILE* {aka _IO_FILE*}' [-fpermissive] fgets(r,1,30,stdin),o=0,i=A(),j=A(),n=c[j-i+1],S(N(b[n][i],b[n][j+1-(1<<n)])); ^ main.cpp:34:27: error: too many arguments to function 'char* fgets(char*, int, FILE*)' In file included from /usr/include/stdio.h:936:0, from /usr/include/c++/6/cstdio:42, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/stdio2.h:253:1: note: declared here fgets (char *__restrict __s, int __n, FILE *__restrict __stream) ^~~~~ main.cpp:25:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("rmq.in","r",stdin),freopen("rmq.out","w",stdout),fgets(r,1,30,stdin),n=A(),m=A(); ^ main.cpp:25:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:25:94: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] main.cpp:27:44: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(r,1,30,stdin),o=0,b[0][i]=A(); ^ main.cpp:34:86: warning: ignoring return value of 'char* fgets(char*, int, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fgets(r,1,30,stdin),o=0,i=A(),j=A(),n=c[j-i+1],S(N(b[n][i],b[n][j+1-(1<<n)])); ^ Non zero exit status: 1